help-13

[lapis kindle]

Ok but what then

24 times 167.5

168x25-167.5x24

?

Yippe

[cerulean sail]

You got it now well done!

[lapis kindle]

Hm

But my high school professor is pretty strict

I don’t think she will accept that as a result

😔

[cerulean sail]

You could explain how you got it, at least

[lapis kindle]

Sure

But we are doing algorithms

I mean

Idk

Is there another way to do the task ?

[cerulean sail]

There isn't really many other ways to do it that are notably different from this way, tbh

[lapis kindle]

Wait

Imma check the results

On the book

I don’t usually do it since I try to practice on my own

But in this case it’s fine ig

@cerulean sail

That was the way

Ty

[cerulean sail]

Hahah, told ya it's pretty much like that

It's been a pleasure

[lapis kindle]

But how do I practice that logic though

Because it isn’t like an equation

Where you just mindlessly calculate

[cerulean sail]

Hmmm, that is a good question, one for which I personally don't have a good answer for a good place to ask that one would be #study-discussion, for me I'm good at explaining how to do certain problems, but not so great at study tips and stuff like that, sadly

[lapis kindle]

It might just come from experience ig

My problem is that

I can understand topics

And classes

No problem

But I’m bad at tasks like these

Where

I have to come up with a way

Instead of learning it

😔

Anyways ty

[cerulean sail]

For examples like these, it's mostly thinking a bit through what you've learned really, and trying to break things down backwards, like for this one, it's a bit about understanding how you get the mean, you add everything up and then divide it by how many people you have

So you know that there's a person in the group, if you remove them, the average changes but there's one less person you're considering, so basically thinking about the fact you can get the sum of everyone's heights from both of those, and whatever "extra" there is must be John

And it's been a pleasure to help

[lapis kindle]

Ty

If I ever need more help I’ll hit you up

Kinda upset I didn’t get this one by myself though since it was pretty simple but oh well

[cerulean sail]

Yea sure, or in these channels there are plenty of people who're happy to help and spend time with you

[lapis kindle]

If you can Ofcourse

[lapis kindle]

I’m pretty tired tho so let’s say that’s the reasoning

[cerulean sail]

There are always things like that sometimes, you'll be fine

[lapis kindle]

I did a similar question by myself tho

If you’re interested

If not I’ll leave ya alone

[cerulean sail]

I might have to get some rest soonish so I may be coming off, but if it isn't too long, I don't mind

[lapis kindle]

Average age of a football team is 25.5 out of 11 players , one player gets ejected and his age is 20.5 , what is the average age of the remaining players

I did (25.5 x 11 - 20.5 )/ 10

[cerulean sail]

Divided for the second one?

[lapis kindle]

Divided everything by 10 yes

And you get 26

[cerulean sail]

Oh I got you now, I see

Well done

[lapis kindle]

Thanks

Anyways I gotta go sleep

I’ll get 7 hours of sleep or so if I go rn so

Gn

[cerulean sail]

Goodnight, sleep well

[lapis kindle]

How do I end this btw

So other people can get help

😭

[split ice]

.close

[cedar kiln]

Channel closed

Closed by @split ice

Use .reopen if this was a mistake.

[split ice]

i'm did it

[cedar kiln]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[cunning flint]

Not sure where to start

[cerulean sail]

,rccw

[cunning flint]

im thinking to set a cost equation that would be like 2hl + 2hw + wl

[winter stirrup]

yeah

[cunning flint]

but im not sure what to do from there

[winter stirrup]

i dont wanna say anything but ur on track

[cunning flint]

i set the cost equation in terms of H, and derived it, now I find the critical points and check which one is the minimum?

.close

[cedar kiln]

Channel closed

Closed by @cunning flint

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[spare widget]

hey im taking my asvab test tmr and i need help studying can any please help me i suck at math

[dire geode]

[cedar kiln]

@spare widget Has your question been resolved?

[spare widget]

i need help with this

explain it like im a 4 year old

[flint plinth]

it's multiple choice, you could cheese it by just plugging in the point (0,-1) and noticing that only one answer is possible

[spare widget]

i needa know the formula too

[sullen cipher]

$\frac{y-y_1}{y_1 -y_2}=\frac{x-x_1}{x_1 -x_2}$

[wraith dagger]

vικτιμιζερ

[spare widget]

ngl this all look like gibrish to me

[sullen cipher]

$$ $(x_1 ,y_1)$ and $(x_2 ,y_2)$ are two coordinates$$

[spare widget]

so the x are the first number

[sullen cipher]

Yes

[spare widget]

ok

thank u guys

ima join the army now cuz of yall

[wraith dagger]

vικτιμιζερ
Compile Error! Click the reaction for more information.
(You may edit your message to recompile.)

[cedar kiln]

If you are done with this channel, please mark your problem as solved by typing .close

[spare widget]

.CLOSE

[sullen cipher]

.close

[cedar kiln]

Channel closed

Closed by @sullen cipher

Use .reopen if this was a mistake.

[ancient lodge]

(it's case sensitive)

[cedar kiln]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[rapid temple]

Let me translate the problem it follows as:

The dimension in meters of a rectangular room is the root of the following equation:

X² - 12x + 32 = 0

[karmic field]

dimension?

[whole nexus]

Also a room would have three dimensions

[karmic field]

oh you mean like the length of the sides

[rapid temple]

In order to cover all the room using 70cm each side how much tiles will be used to cover the room

[rapid temple]

yeah sorry for misstranslatio

[karmic field]

you know how to solve the equation ?

[whole nexus]

Ahhh the floor, then it's fine

[rapid temple]

No, i know the result as i throwed it in photomath

but i wanna know how to actually do the equation

[whole nexus]

Well, basically first of all find the values of x

You know how to solve quadratics right?

[rapid temple]

no 😭

i have it written on my notebook rn

so let me see if this is correct

A = X² B= 12x C= 32

[whole nexus]

Whoa, well this question should only be attempted if you can solve quadratics ngl

[floral arrow]

What is the result you got from that, and what have you tried to solve it yourself?

[rapid temple]

4 and 8 both positive

[karmic field]

im pretty sure for the form you are using its A=1 B=-12 C=32

[whole nexus]

Yeah seems fine

[rapid temple]

ill maybe try and learn and come back later

should i?

[karmic field]

yea

[whole nexus]

Alright then, considering you now have the values of x it shouldn't be much of a problem now

[floral arrow]

If your question is about solving quadratic equations, you should definitely go learn that before asking about this problem

[rapid temple]

yeah also context im trynna pass on this really really prestigious college and math is my weakest subject

[floral arrow]

Tons of resources online that can teach you

[rapid temple]

and im pretty smart i have 9-10 on all subjects so they accepted me to do the exam

but the exam is all math and this is one of the questions the last year exam asked for

[rapid temple]

(except math) useless info

wish me luck

[whole nexus]

You're still gonna have to know stuff mate, if you're smart then you can learn it quicker, that'd be better and you'd understand it more

[rapid temple]

ok ill just wait the time and close this help channel ill come back when i learn the basics needed to this

[whole nexus]

Alright then, for this question, just learn how to solve a quadratic equation

It'll show two formulae, learn both of them

[rapid temple]

formulae i didnt knew plural of formula was formulae

cool thing

[whole nexus]

It just sounds better than formulas

[rapid temple]

right

sorry for wasting time anyway

[whole nexus]

Well, you can close this channel and open another one once you've learned the topic

[whole nexus]

No problem dude

[rapid temple]

how do i close it before the time?

[whole nexus]

.close

[rapid temple]

.close

[cedar kiln]

Channel closed

Closed by @rapid temple

Use .reopen if this was a mistake.

[cedar kiln]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[dire radish]

is differential calc easier than multivariable calc

[fossil dawn]

uhh... you're comparing univariate/single-variable differential calc to multivar calc?

[cedar kiln]

@dire radish Has your question been resolved?

[cedar kiln]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[frigid shadow]

what are the functions 7 and 9?

[warped coyote]

!status

[cedar kiln]

What step are you on?
1. I don't know where to begin.
2. I have begun but got stuck midway.
3. I got an answer but I was told that it's wrong.
4. I got an answer and would like my work checked.
5. I have a question about someone else's work/solution.
6. I have completed the problem and don't need help anymore. Thank you.
7. None of the above

[frigid shadow]

the assignment is to get the derivative

need the functions

for 9,

i thought it might be something like 1/x

but it looks different

and for 7 i have no clue

[warped coyote]

Is there any more info?

9 looks like x + (1/x)

And q7 looks like e^-(x^2)

[frigid shadow]

we’re supposed to match it to a derivative function

9 is S and 7 is O

on the key

but idk how to get

[warped coyote]

Well 9 should be easy enough, use the power rule

[frigid shadow]

so 9 is it x + 1/x, becomes 1 + 1/x^2

[warped coyote]

Yep

[frigid shadow]

what about 7 ? how do u know it has e so it stays the same if its a derivative, but why does the key say its O

[warped coyote]

It is o, don't forget the chain rule

[frigid shadow]

oh ik

ok*

i think i got it

thanks

[warped coyote]

Anything else?

[frigid shadow]

nope. have a good day

.close

[cedar kiln]

Channel closed

Closed by @frigid shadow

Use .reopen if this was a mistake.

[cedar kiln]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[burnt raptor]

Not sure where to start. I think f'(-10) has something to do with derivatives like perhaps using x^(n-1) to reformat to help find f'(-10)? Have to use f(x) = 15 to find f'(-10), perhaps some sort of solving where you divide or set something equal to eachother to find f'(-10).

[chilly warren]

What is f'(x)?

[flint plinth]

is there more to the question?

are they saying that f is the constant function 15, or it's equal to 15 at some x, or what?

[burnt raptor]

.close

[cedar kiln]

Channel closed

Closed by @burnt raptor

Use .reopen if this was a mistake.

[cedar kiln]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[indigo lagoon]

Is the given graph f(x)?

[sullen pendant]

Y= f(x) yes

What do I do in this scenario?

X would =2 wouldn’t it?

Or can we not assume that?

Btw each box is 4 units wide and 5 units high

[indigo lagoon]

What do you mean by this?

[sullen pendant]

I retract that statement idk where I was getting that from

But what would the first step be?

[indigo lagoon]

Alright so, the first question is: Do you know how to translate this stuff into English?

[sullen pendant]

What do you mean?

[indigo lagoon]

Like what does it mean, its definition etc

[sullen pendant]

Well there’s a limit as x approaches 12

And to find it

You need to use the formula given

[indigo lagoon]

yes, anything else you find?

[sullen pendant]

B it would be indeterminate wouldn’t it be?

Or it wouldn’t because

No it would be because X = 20 at that point

[indigo lagoon]

What's B?

[sullen pendant]

But it*

[indigo lagoon]

Let's clarify, this stuff is basically asking for the limit when x approaches 12, right?

[sullen pendant]

Yeah

[indigo lagoon]

Do you know the slope formula?

[sullen pendant]

Wdym like

Y1-y2

¯_(ツ)_/¯

I can’t

[indigo lagoon]

how about its denominator?

[sullen pendant]

Use the slash 😭

[indigo lagoon]

it's only half done

[sullen pendant]

The denominator would be x2-x1

[indigo lagoon]

Yes

So the slope formula is $\frac{y_1-y_2}{x_1-x_2}$

[wraith dagger]

This is sad 😢

[indigo lagoon]

Right?

[sullen pendant]

Yeah

Do they want me to use the slope formula?

[indigo lagoon]

We now replace $y_1$ and $y_2$ with $f(x_1)$ and $f(x_2)$

[wraith dagger]

This is sad 😢

[indigo lagoon]

$\frac{f(x_1)-f(x_2)}{x_1-x_2}$

[wraith dagger]

This is sad 😢

[indigo lagoon]

That's the basic definition of derivative

and yes, it requires the concept of slope

[indigo lagoon]

Do you find anything interesting?

[sullen pendant]

Ooh that checks out why I was having trouble, I’m not great with definition of derivative problems

Mmmm think give me a hint?

[sullen pendant]

Regarding this?

[indigo lagoon]

Sure why not

[indigo lagoon]

yes

Look carefully, they look pretty alike

[sullen pendant]

Ok ok so I need to find x1

Right?

Would that be 12?

[indigo lagoon]

nah, you're too fast, lemme finish

[sullen pendant]

Ok ok

[indigo lagoon]

So do you agree that this guy is telling you the slope between two points, if you remove the limit notation?

[sullen pendant]

Mhm

That bit checks out

[indigo lagoon]

and f(12) = 20

(it's on the graph)

[sullen pendant]

Yes

[indigo lagoon]

So we can basically rewrite it as\
\
\$\frac{f(x)-f(12)}{x-12}$

oops

[wraith dagger]

This is sad 😢

[indigo lagoon]

and for every x you plug in, this stuff tells you the slope between (x, f(x)) and (12, f(12))

got ya so far?

[sullen pendant]

Yeah I’m following

[indigo lagoon]

Right

Let's take the limit notation back

So this stuff says "when x is very very very VERY close to 12, what would be the slope"

[sullen pendant]

Yeah I understand that bit too

[indigo lagoon]

the slope between (x, f(x)) and (12, f(12))

[sullen pendant]

But what number would I then plug in for (x,f(x))?

[indigo lagoon]

and yes, that's the definition of derivative, is there any provided piecewise function in the question?

[indigo lagoon]

You'll need the piecewise function, otherwise we have nothing to diff

[sullen pendant]

Well here’s the whole problem, it just states that y=f(x)

Do you see where my confusion sprouts from now?

[indigo lagoon]

where did you get this?

without any function

[sullen pendant]

Well I used the graph to find (88,y)

And then i estimated the slope, which seemed to be -0.5

[indigo lagoon]

uhhh......doesn't seem to be a legit approach

but sure, given that your teacher didn't provide any function either

[bronze tapir]

Find f(12) in graph by seeing the grid
If it's coming out to be 20
Then 0/0 form you can do lopital rule
Main question is how we gotta find the function by just looking at graph

[sullen pendant]

I was gonna say

We haven’t been taught Lolita’s rule yet so we aren’t allowed to use it :(

I understand it could be helpful in this situation but we haven’t gotten there yet

[indigo lagoon]

you don't need that here

[sullen pendant]

Oh

[bronze tapir]

Ohk
I think Indian mathematics is a quite on higher side

[indigo lagoon]

All you need is a well-defined function

[sullen pendant]

But we don’t have that

[bronze tapir]

Absolutely true

[indigo lagoon]

Have you contacted your teacher for this?

[sullen pendant]

No, it’s a common occurrence for the last question on our homework to be rather difficult or even impossible

But he’ll find a way to muster up an answer

[bronze tapir]

Of the first derivative*

[indigo lagoon]

I presume this one falls into the second category

[sullen pendant]

I’d agree but he always has an answer

With an explanation too, which makes it even more confusing because it puts me in awe that he would even know what to do

If that makes sense

[indigo lagoon]

LOL, uh I mean...sure

idk how would they excuse this

[sullen pendant]

Me neither

But at the end of the day I need to understand it to pass the class

[indigo lagoon]

idk if we can take it as a quadratic function

It's definitely not the right way to do in normal circumstances, but why not give it a try

[sullen pendant]

I suppose if there are no other options

Could you do something like

(20-10)/(12-10)?

Mmm idk about that actually

[bronze tapir]

ok hit and trial fr

[indigo lagoon]

what does this represent?

[sullen pendant]

The slope formula

[indigo lagoon]

(10,10) is a point on the function?

[sullen pendant]

Well

It appears to be

Roughly 1.1 box down and 1 box to the left

[indigo lagoon]

no, you cannot do that. Since the derivative of f is supposed to yield a slope that tangent to the spot

Doing so does not guarantee that

[sullen pendant]

I’m not sure what else to do

What do you recommend(

?*

[indigo lagoon]

I would recommend this

[sullen pendant]

Using the quadratic formula?

[indigo lagoon]

Setting $ax^2 + bx + c = 0$

[wraith dagger]

This is sad 😢

[indigo lagoon]

Find three points on that goofy function

[sullen pendant]

How do we know that it’ll = 0?

[indigo lagoon]

find a, b, c, and manually generate a function that looks alike to the curve

[indigo lagoon]

mb, autopiloted

[sullen pendant]

Ohhh I see

[indigo lagoon]

Setting $f(x) = ax^2 + bx + c$

[wraith dagger]

This is sad 😢

[sullen pendant]

We haven’t learned this either, I may just go in early tomorrow during the professor’s office hours to ask what he wants me to do

[indigo lagoon]

Alright

[sullen pendant]

I greatly appreciate your help though, thank you very much

[indigo lagoon]

Feel free to claim another help channel tomorrow if you're still confused

no worries, have a good one

[grave osprey]

I have a question, we can't use lhopital here?

[sullen pendant]

Thanks, you too

[indigo lagoon]

You can, actually

[sullen pendant]

Can’t use it because it hasn’t been covered in class yet

[indigo lagoon]

but not necessary

[grave osprey]

oh

[sullen pendant]

It’s a very unfortunate series of events

Alright, I’m heading to bed, good night you guys, thank you very much, if I’m still confused tomorrow you’ll likely be seeing me again

[indigo lagoon]

Alright

cyaa

[sullen pendant]

Have a good one

[plush flame]

its the limit definition of a derivative not sure how much that would help

[sullen pendant]

Unless Webster has some sort of anomaly

[plush flame]

👁️

i was trying to figure out the graph on desmos but that thing looks hand drawn

[abstract breach]

It's like using an airplane to go to the grocery store

[indigo lagoon]

yeah, I've already mentioned that

[sullen pendant]

It 100% is

[chrome elk]

Hullo Taylor Swift

[indigo lagoon]

The problem is that we lack a well-defined function

[plush flame]

i have gathered that

[sullen pendant]

I’m gonna head in early tomorrow, would you guys like an update after the answer is reveiwed in class?

[indigo lagoon]

Sure

[sullen pendant]

Alright sounds good, I’ll talk to you later, thanks again

.close

[cedar kiln]

Channel closed

Closed by @sullen pendant

Use .reopen if this was a mistake.

[sullen pendant]

.reopen

[cedar kiln]

✅

[sullen pendant]

Anything Xavier?

[chrome elk]

Nothing that hasn't been said yet no

[indigo lagoon]

nah, he can reopen himself if he has anything to say

[chrome elk]

Abusing power like it's going out of fashion

[indigo lagoon]

fr 😭

I wish I were a helpful

[sullen pendant]

You were, this problem is just beyond difficult

[chrome elk]

...you are

[chrome elk]

It's just underspecified

[sullen pendant]

Exactly thank you

[chrome elk]

Difficult problems are solvable still

[sullen pendant]

Alright I think I’m heading to bed, if you guys think of anything and are curious to find out for yourself you can always DM me or send a friend request, thanks to all of you out there trying to help me, have a good one

.close

[cedar kiln]

Channel closed

Closed by @sullen pendant

Use .reopen if this was a mistake.

[chrome elk]

Good night!

[main magnet]

hi

[chrome elk]

Hi, if you have a question, please claim an available channel such as #help-48

[cedar kiln]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[craggy tusk]

Hi, i know it's kinda late, but i've been stumped by this exercise that i have literally no idea on how to even start it, i've done some research and i got something called symmetrical integral, but my teacher hasn't explained it and it seemed a bit too cryptid for me to understand by reading it from the webpage, the most i got was to understand that i have to use sustitution but i don't really know, can anybody help me?

[lime bloom]

a symmetric integral means that the function looks as if its mirrored; in this case, its mirrored across the y-axis

with symmetry, instead of taking the integral from -3 to 0 and from 0 to -3, you can just calculate the integral from 0 to 3 and multiply it by 2 (since they should have the same value by symmetry)

(u can also get rid of the pesky absolute value that way too)

[craggy tusk]

in my class we haven't got to graphs yet, but i assume that the -3 to 3 is what you mean by mirrored

[lime bloom]

that, and if i flip the function over the y-axis, it should look mirrored

analytically this mirroring's better stated as f(-x)=f(x), or something to that effect

[craggy tusk]

oh, so, something like this?

[chrome elk]

Close

The limits would change as well

[craggy tusk]

oo

[chrome elk]

The limits for u aren't the same as the limits for x

Also your 1 looks like a 7, might wanna fix that

[craggy tusk]

ok ok

is that a general rule or just in these cases?

[chrome elk]

Whenever you're substituting you gotta be careful of that

Usually it ends up not mattering cuz you write it in terms of x at the end before plugging in values

But it's still good practice

[craggy tusk]

that's odd but it kinda makes sense, bc i've done exercises where i have to substitute and i don't change the limits, but since i

[craggy tusk]

yeye that

that's what i was noticing rn when i went to check for my previous problems

i almos had a heart attack thinking that i had to redo and rethink

40 problems 😟

[craggy tusk]

ok, how do i do that?

[chrome elk]

Well when x is 0 what is u

[craggy tusk]

3

(about this right?)

[lime bloom]

yep through that

[craggy tusk]

ok, so if x is 0 u is 3

and if x is 3

u is 6

[lime bloom]

yep

[craggy tusk]

so this

[lime bloom]

yup, i think that should be good

[craggy tusk]

ok, then when i change u back to X i shall change the limits on it as well

right?

[lime bloom]

woil you could, but thatd just add more work; easier to just use the new limits with u, since you already went through the trouble of converting from x to u

[craggy tusk]

it won't change the answer?

well i guess i can test that by myself, i don't want to add more work to you

[chrome elk]

It won't, no

That's the idea behind substitution

[craggy tusk]

so, please correct me if i'm wrong, but it should look something like this?

[lime bloom]

that should be the gist of it, yes

[craggy tusk]

oh alr, thank you very much for helping me!, have a nice night/day (in my country is 12:35 AM)

.close

[cedar kiln]

Channel closed

Closed by @craggy tusk

Use .reopen if this was a mistake.

[cedar kiln]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[karmic field]

hello can someone explain what the dirac delta function is i found somewhere saying it can be considered as the derivative of the step function but isnt that just 0 everywhere

[chrome elk]

Dirac delta function can mean a lot of things depending on what context you found it in

In physics, it's a function which is 0 everywhere and "infinity" at a point

And it integrates to 1

Don't ask

[karmic field]

is it not 1 specific function

[karmic field]

ask what

[chrome elk]

Well depending on the context it's not even a function

[karmic field]

how can it be infinity at a point

[chrome elk]

Cuz physics

In measure theory, it's more well defined

The dirac measure is essentially

You pick a point, and if the set contains that point it has measure 1

If not it has measure 0

[karmic field]

what are you even saying at this point

[chrome elk]

Hence me asking what context you found it in

[karmic field]

in math

is it not defined the same for all math context

[last apex]

More specific?

[chrome elk]

Very few things are

[karmic field]

differential equations

[karmic field]

how is that the case

how can definition change based on the context

im refering to delta dirac function

so what is this function do we have a formula for it

[chrome elk]

Well the dirac delta function is quite literally what I said at first

It's 0 everywhere and infinity at 0

It's used to model point masses and stuff

[karmic field]

then whats the point of it having an input

if δ(x) is the same for all x

[chrome elk]

Well that's δ(x)

[karmic field]

why we write δ(t-a)

[chrome elk]

What about δ(2x+1) perhaps

[chrome elk]

Exactly, this is 0 everywhere and infinity when t-a = 0

[karmic field]

so at a

[chrome elk]

Mathematically, dirac delta is a linear form acting on functions

[karmic field]

but how is that possible

[chrome elk]

It's not, but it's helpful for physics modelling

[karmic field]

arent functions defined from C->C at most

[karmic field]

how can something be teached in maths if its mathematically wrong

[chrome elk]

It's not.. wrong. You just don't have the tools to properly define it yet

[karmic field]

what does it mean for a point to be at infinity

does that point even exist

[slender atlas]

can I share a link here for OP to try to read, if he wants to try understanding the Dirac delta function?

[chrome elk]

Sure go ahead

[slender atlas]

https://eng.libretexts.org/Bookshelves/Electrical_Engineering/Signal_Processing_and_Modeling/Introduction_to_Linear_Time-Invariant_Dynamic_Systems_for_Students_of_Engineering_(Hallauer)/08%3A_Pulse_Inputs_Dirac_Delta_Function_Impulse_Response_Initial_Value_Theorem_Convolution_Sum/8.04%3A_Dirac_Delta_Function

[chrome elk]

I have been tempted to send the wikipedia link lol

[karmic field]

whats OP?

[chrome elk]

Original Poster

You

[karmic field]

what is this

is this U well

whats it called

[slender atlas]

the motivation behind the Dirac delta function.

[karmic field]

potential well in physics

or its randomly looking similar

[chrome elk]

It is the same idea I believe

[karmic field]

electron trapped in a potential well

is like U(x)

where U=0 inside a domain

and U= +oo

outside

something like this

[chrome elk]

Yes, physics modelling often requires infinite values

[karmic field]

so what does it mean to write down δ(0) = +οο

well actually better question is how we define infinity

cause so far ive treated infinity as a concept like i write lim f = +oo but i can never do arithmitics with it like write down 5 (+oo)

[last apex]

We don't.
Thata how you would think about it "intuitivly" and what we actually use are the properties of it.

[chrome elk]

Whenever you have a dirac delta function, you usually don't care about its value at a point

You care about what happens when you integrate it

[karmic field]

i care about the point

[chrome elk]

That's interesting

[karmic field]

matter or fact i care about it a lot now

a very much lot

[cosmic hound]

Technically it's not a function and integrating it is just pretend shorthand

[last apex]

probably xy

[chrome elk]

Yeah this is xy territory

[karmic field]

so how do we define infinity

[chrome elk]

Who's doing it

[karmic field]

for example we can define 5 as the successor of 4

how can we define something that is bigger than any other number

[chrome elk]

Okay fine it's me

!xy

[cedar kiln]

Please show the original problem, exactly as it was stated to you, with the entire original context. A picture or screenshot is best. If the original problem is not in English, then post it anyway! The additional context might still be helpful. Do your best to provide a translation.

[karmic field]

idek if it is a number

[cosmic hound]

there are all sorts of infinities

[chrome elk]

Well you can define ordinals

[cosmic hound]

cardinal numbers, ordinals, one-point compactification, extended reals, hyperreals, surreals, etc

[karmic field]

ok

tell me one of them

[chrome elk]

We have moved way too far from the original problem

Could you send your original question please

Cuz at this point we are just talking concepts

[karmic field]

idc about the original problem

there is no problem

i solve everything

only problem is understanding what this is and why my source avoided talking about it

[chrome elk]

Most likely cuz you lack the tools to properly define it now

But it's still useful to have

[last apex]

Should we introduce measure theory?

[chrome elk]

I tried at the very start if you scroll up

[karmic field]

what course do you learn that in

[chrome elk]

Measure theory

[karmic field]

is that Real analysis or something

[chrome elk]

Exact course name would depend on your curriculum

[karmic field]

idk what level that is

got anything to do with this

[last apex]

After real analysis

[karmic field]

Positive Borel Measures

oh

[last apex]

Yes

[karmic field]

yea nvm

thats way too far from me

[chrome elk]

Exactly

For now just treat it as a black box

[karmic field]

i havent properly started analysis yet

well i have kinda but not in order

[karmic field]

this pisses me off

[last apex]

You can get a taste of measure theory

[karmic field]

is there no way for you to somehow tell me what we "mean" when saying a point is at infinity

as to where it is

[chrome elk]

I understand that feeling

[chrome elk]

Okay fine I'll try

The dirac delta function integrates to 1 over ℝ

And we want the area where it's non-zero to be as small as possible

[karmic field]

yea its same way it pissed me off some months ago when i was in highschool and they were saying the when you split an interval and choose ξκ is does not affect the result of the Sum

[chrome elk]

So we define it as a limit of functions

All of these functions have area 1

And we slowly reduce the area where they are non-zero

[karmic field]

well so its not a point ?

[chrome elk]

At the limit it is

Have you done sequences of functions

[karmic field]

but limit infinity

is a concept

we cant do arethmitics with it

[chrome elk]

Maths is more than arithmetic

Also we very much can

[karmic field]

we call it infinity but in reality its just that for every M>0 blah blah blah

[chrome elk]

Extended reals are very well defined

[karmic field]

yea well which is it

is it at infinity

or is that that for every M>0 there is ...

[chrome elk]

?

[karmic field]

ive finished calc 2 im in middle of calc 3 and ive seen all proofs of the stuff in those

and im like 2/3 in differential equations

so series go up to like taylor series

binomial

[karmic field]

is there any specific sequence you want to refer to?

ive only skipped 1 ε,δ proof in sequences i think cause it got too complicated

so i should know what you need

i see the limit definition

[chrome elk]

$\delta_a(x) = \frac{1}{\abs{a}\sqrt{\pi}} e^{-(\frac{x}{a})^2}$

[karmic field]

but the problem is this should only be valid for when lim converges

this the formula?

[wraith dagger]

Xavier 🌺

[karmic field]

yea ik what this function looks like

[chrome elk]

Now look at this as a goes to infinity

[karmic field]

Gaussian integral looking

[karmic field]

oh a not x?

[chrome elk]

It's a sequence of functions

[karmic field]

oh yea ok

so the limit

lemme get a paper

[chrome elk]

From you saying this, I'm not sure you've done sequences of functions

[karmic field]

yea i havent done this notation no

but i understand and can do it

i have done series represenation of functions

but isnt this only valid if it converges?

[chrome elk]

Wait as a goes to 0 my bad

[karmic field]

ok lemme calculate it

[chrome elk]

I will once again say, some things are okay to use as black boxes since you don't have the tools to rigorously understand them. And I understand that this can be unsatisfying but you'll just have to be patient

[karmic field]

i mean i dont want to rigosly

but like atleast

as an idea

[chrome elk]

What I have given here doesn't exactly work, but it is as close as I can get without having to teach you measure theory and distribution stuff

[karmic field]

damn

this |a| is really annoying

cant even do DLH

case work ig

@chrome elk how do we calculate this

[chrome elk]

Heck if I know lmao

[karmic field]

wtf man

bro got me struggling when not even he knows

DLH doesnt work just keeps bringing a down

well lets take easy case x=0

then its positive infinity

whats the point

[chrome elk]

I told you this is a bad idea given the tools you have rn

[karmic field]

can you maybe

idk tell me what a point at infinity means in words

like is it with the limit definition

[chrome elk]

Literally nothing, all we want is the function to integrate to 1

[karmic field]

is it that the point is >M for every M>0

[chrome elk]

And this is how we define it

[karmic field]

is that it?

[chrome elk]

Sure if you want that

Like I said, you will never work with this function outside of an integral

[karmic field]

that makes a lot more sense than saying its at infinity

[karmic field]

why not

[chrome elk]

So all you care about is how its integrals behave

[karmic field]

why will i not is it not allowed

this is so odd but ok ig ill leave it behind

for now

[chrome elk]

Essentially yes

The function doesn't exist per se

It's just useful to say it does and use its integral

[karmic field]

ill leave it before i start asking questions that bring us to other theories

[jovial anchor]

dirac delta is essentially the map $f \mapsto f(0)$

[wraith dagger]

Pseudo (Cat theory #1 Fan)

[jovial anchor]

at least this is how i like to think of it

[chrome elk]

Yeah the next question you ask I'm going to throw linear forms at you

Oh nvm Pseudo already did, thank you

[karmic field]

what does f->f(0) mean?

[jovial anchor]

the idea is that dirac-delta is a "higher-order function"

[karmic field]

havent seen this notation

[jovial anchor]

it's input is a function f

and the output is the value of f at 0, f(0)

[karmic field]

oh input

yea bro nv m

this is getting me more questions

[jovial anchor]

e.g. maybe the input to dirac delta would be the function "sin(x)"

then the output would be sin(0) = 0

[karmic field]

even more now

ill just leave it behind as much as i dont want to

[jovial anchor]

that's alright

[karmic field]

ok thanks for the help guys

appreciate taking your time with my annoying arguing questions

.close

[cedar kiln]

Channel closed

Closed by @karmic field

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[wise forge]

It tells to find the integer solution of a,b,c

[slender atlas]

not enough information.

you have three unknowns to solve with one equation. unless there's more to this question, I don't think there is a unique solution.

[last apex]

all solutions

There are finitly many

[wise forge]

All possible solutions

[slender atlas]

I see.

[wise forge]

I get
2(a+b+c)=abc

[last apex]

Let a <= b <= c

How large can a be?

Oh wait do you want integer solutions or postive integer solutions?

[wise forge]

I think the question means positive integer solutions

[last apex]

Yeah ok this is much easier

[last apex]

Can you answer this?

[wise forge]

i mean probably if i use brute force

[upper laurel]

think about what happens if the fractions are too small

[last apex]

No need brute force

[wise forge]

i dont get it

[slender atlas]

take a = 10, for instance.

[slender atlas]

do you see a solution fulfilling this?

[wise forge]

sry guys i must go now byr

.close

[cedar kiln]

Channel closed

Closed by @wise forge

Use .reopen if this was a mistake.

[cedar kiln]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[dawn narwhal]

can someone pls help me understand goniometric inequations? my problem is when i have to pick the answer after i draw the circumference, like especially with 2nd grade equations i can give an example, im at a point ehere im left with •tanx<=-1 and tanx>=sqrt3/3, i draw the circumference but im just confused what the hell am i supposed to pick

[slender atlas]

,rccw

[slender atlas]

for future helpers, maybe: would it be fine if you posted the original question too?

[frosty creek]

Yep

[dawn narwhal]

yeah sorry

[slender atlas]

,rccw

[slender atlas]

maybe original, like the book this question came from?

it will help us understand how you got to this step.

[dawn narwhal]

sure

568

[slender atlas]

hm, you are on the right approach.

if you know the graph of the tangent function, it would be easier to do this. are you allowed to graph?

[dawn narwhal]

like trying to get the solutions from y=tanx?

it wasnt how he taught it but im sure its fine

as long as the answer is correct

[slender atlas]

then you could try finding the base solutions by graphing tan(x) for 0 < x < 2pi first.

[dawn narwhal]

why 0 and 2pi specifically?

[slender atlas]

length of a period (though for tangent, you can technically get away with 0 < x < pi, since the period of the tangent function is pi radians).

[frosty creek]

Its the periodicity of tan

[frosty creek]

You have to convert it back to x and add the periodicity

[dawn narwhal]

like this?

[slender atlas]

yeah.

then now find the solution for tan(x) = -1 and tan(x) = sqrt(3)/3.

[dawn narwhal]

ok and that is -pi/4+kpi

and uh

pi/6+kpi

[frosty creek]

Yeah

[dawn narwhal]

but in the inequation it would be x<=-pi/4+kpi and x>=pi/6+kpi wouldnt it

[slender atlas]

well, because of the period of tangent, we can rewrite -pi/4.

can you rewrite this to be positive?

[dawn narwhal]

2pi-pi/4

or ub

uh

[slender atlas]

the period of tangent is pi.

[dawn narwhal]

7/4

[slender atlas]

you can make this even smaller.

[dawn narwhal]

what i learnt was that the 4th quadrant is 2pi+teta

• sorry

minus*

not plus

[slender atlas]

yes, but again, tangent has a period of pi.

so we can actually do pi - pi/4.

[dawn narwhal]

but if i did pi-teta wouldnt it be 2nd quadrant?

[slender atlas]

that's where the kpi comes in.

[dawn narwhal]

oh cus 5/4 and 7/4 is the same

got it

[slender atlas]

3/4*

[dawn narwhal]

with tangent

yeah 3/4 mb

[slender atlas]

mhm.

[dawn narwhal]

ok so uh

[slender atlas]

so what are your two inequalities now?

[dawn narwhal]

so id have x<3/4pi and x>pi/6

[slender atlas]

don't forget your equals.

[dawn narwhal]

yeah

[slender atlas]

but yes. can you now combine them into one inequality?

[dawn narwhal]

do i do like the graph like i did 2 years ago when i learnt ax^2+bx+c>0?

[slender atlas]

you don't have to. you're at the last step already.

(well, second last. there's one more step because you're dealing with tangents.)

[dawn narwhal]

it would be

pi/6<=x<=3/4pi

[slender atlas]

good job. (don't forget the + kpi on both sides.)

[dawn narwhal]

wait is that it

[slender atlas]

now, there is one more step. because we are dealing with a tangent, we have one more restriction to consider.

[dawn narwhal]

right pi/2+kpi

[slender atlas]

correct. x can never be any of those values.

now you can write the final answer.

[dawn narwhal]

that but adding the kpi and the x≠pi/2+kpi

so like

can i like ignore any graph and do the inequality with the graph like i wouldve did if there was no sin/cos/tan

[slender atlas]

sorry, what do you mean?

[dawn narwhal]

cus i did the quadratic formula and got tanx1=sqrt3/3 and tan2=-1

i know from the initial equation that a>0 and we have >

[slender atlas]

yeah, that's the correct strategy here.

[dawn narwhal]

so i know i do x<= the smaller one

and x>= the bigger one

i solve tanx<=-1 as if it were tanx=-1

[slender atlas]

I see your point, but isn't that what you've done here?

[dawn narwhal]

yeah but the teacher told us we have to look at the circumference to get the final value

but i domt see how that could make it any easier than what we did

[slender atlas]

I don't think that is necessary, but if your teacher forces you to use that method or you score no marks, then, well...

you don't exactly have a choice, do you.

[dawn narwhal]

he doesnt at least i dont think so

[slender atlas]

if the teacher allows other methods, then absolutely. I see this being a little more intuitive.

[dawn narwhal]

he always says do wtv u want as long as u get the right answer

[slender atlas]

then yeah, your method makes perfect sense. it's how I would have done it too.

[dawn narwhal]

ok well

tysm for the help ❤️

[slender atlas]

my pleasure. is there anything else?

if not, please remember to close the channel.

[dawn narwhal]

nope at least for now ty

.close

[cedar kiln]

Channel closed

Closed by @dawn narwhal

Use .reopen if this was a mistake.

[cedar kiln]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[slender atlas]

you seem to have the exact same picture as the OP in #help-42.

[chrome elk]

That is absolutely amazing lmao

[warm slate]

Thanks for pointing this out.

[calm sierra]

.close

[cedar kiln]

Channel closed

Closed by @calm sierra

Use .reopen if this was a mistake.

[chrome elk]

Right sorry for not tagging a mod

[slender atlas]

my apologies as well.

[cerulean sail]

.We already got a ping so don't worry about it, you're fine (cc @slender atlas)

[cedar kiln]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[formal crypt]

this is dumb but from
x/x-1 - 1/x = 1/x-1

what is the common denominator?

[indigo lagoon]

$\frac{x}{x-1} - \frac{1}{x} = \frac{1}{x-1}$

[wraith dagger]

This is sad 😢

[indigo lagoon]

Is this your question?

@formal crypt

[formal crypt]

yes

[indigo lagoon]

Alright so, I have a simpler question for you beforehand

Can you simplify this for me?\
$\frac27 + \frac{3}{11}$

[wraith dagger]

This is sad 😢

[formal crypt]

I know how to find common denominators but i can't figure out how to find that one

[high coyote]

7 is prime
11 is prime

[formal crypt]

yes i know

[prisma pike]

So you can simplify this right @formal crypt

Describe the process in which you do so

[formal crypt]

the least common denominator is 77 so i multiply 11 times 2 and 11 times 7

then i repeat with 7 on the other fraction

i get 22/77 + 21/77 = 43/77

[prisma pike]

Mhm

So in general

The common denominator of fractions $\frac{a}{b}$ and $\frac{c}{d}$ is $bd$ yes?

[wraith dagger]

denzio321

[formal crypt]

yes

[prisma pike]

So we cycle back here

$\frac{x}{x-1} - \frac{1}{x} = \frac{1}{x-1}$

[wraith dagger]

denzio321

[prisma pike]

Can you apply this

[prisma pike]

To this

[formal crypt]

x(x-1) right?

[cedar kiln]

@formal crypt Has your question been resolved?

Channel closed

Closed by @formal crypt

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[idle epoch]

bot

[idle epoch]

help

Help Bot!

how to work a standard and wuadtraic ewuation

OMGEE

okg

[dire geode]

!original

[cedar kiln]

Please show the original problem, exactly as it was stated to you, with the entire original context. A picture or screenshot is best. If the original problem is not in English, then post it anyway! The additional context might still be helpful. Do your best to provide a translation.

[indigo lagoon]

How to work on a standard quadratic equation
Is this what you're looking for?

[idle epoch]

wait

Giys come back please

Chatgpt is being wrong i need help

[indigo lagoon]

What did you ask them?

[idle epoch]

The quadratic formula i have is
y= 3x^2 + 5x - 2

I need to fjnd the x intercepts

How do i do that? I was given the quadratic formula

How do i get the bot to work

!oringial

ididi

!original

[cedar kiln]

Please show the original problem, exactly as it was stated to you, with the entire original context. A picture or screenshot is best. If the original problem is not in English, then post it anyway! The additional context might still be helpful. Do your best to provide a translation.

[indigo lagoon]

Why do you need the bot to work?

[idle epoch]

im being ragebaited by chatgpt ai and this ai

I need help with my math

[indigo lagoon]

yeah, I'm here for you

$y= 3x^2 + 5x - 2$

[wraith dagger]

This is sad 😢

[idle epoch]

I got to the equation

oh

[indigo lagoon]

So what have you tried?

[idle epoch]

Let me show u a oicture

[indigo lagoon]

Alright

[idle epoch]

im stuckon the swuare root of 1 i think i didnt somethign weong

wrong

[indigo lagoon]

you did get something wrong

it's a very small detail

[idle epoch]

whatd i get erong

[idle epoch]

Excuse my bad grammar ihave a phone and the meyboard is ass

[indigo lagoon]

the yellow part is supposed to be -2 not 2

[indigo lagoon]

it's alright

[idle epoch]

ohh

Ok let me rewrite the whole thing

Thank you

Can i work on my question than show u if its right

wait

comebakc im stuck

[chrome elk]

Yeah sure take your time

[indigo lagoon]

yes for sure

[idle epoch]

is it like this

the -24

Idk how to use iphone calculator its top tier ragebaiting

[chrome elk]

What's 25 -(-24)

[indigo lagoon]

looks good

[idle epoch]

Um so the negitive and negitive turns to a postive so is it 49

im stuck again whay do i do for the 2/6

should i shrink it to 1/3? or do smthing else

[chrome elk]

Well firstly, there are two x-intercepts

You want a ± before the square root

[chrome elk]

Yes that's one of your answers

[idle epoch]

oh so like i would seitch it up

Wait i rem doing this in grade 10 math let me try it

like this

Ts lowk so cool i rem doing this

guys whered u go💔

[indigo lagoon]

Looks cool

What would you do next?

@idle epoch

[idle epoch]

Ok so

now my friend shown me one way but i understand this way mor eeasier

Now i need to find the vertex

[supple falcon]

uhhh, what's the problem?

[chrome elk]

The vertex is the point where it has the lowest/highest value

[idle epoch]

honestly idk what the teacher means by the vertex

ohok wait let me showu what i need to learn

[chrome elk]

Are you familiar with differentiation yet

[idle epoch]

i need toknow these

[idle epoch]

no clue what that word is

[chrome elk]

Ah cool I'll take that as a no

In that case you find vertex by completing the square

Do you know how to do that

[idle epoch]

NO

No

sorry caps

guys

how do i find vertex for number 1 wuestion “a”

[idle epoch]

8’ gna kms💔

Im in grade 11 math uni level prep Functions

if ts helps

canada to

so erm um

[cerulean sail]

Is this a live test that you're doing right now?

[idle epoch]

WDYM

Caps sorry

This seems like im ragebaiting but idk how to use discord i only come for help with my classes

[cerulean sail]

Is this a test, or is it homework or something?

[cerulean sail]

Also please don't say that

[idle epoch]

I have a math test right now so i skipped it to go study for math

Ok im sorry

I am studying my math work and i need help with the topics , i want to learn about the topics before i do my unit tests

[cerulean sail]

Wait, you have a test for math, but you skipped the test to... study for the test?

[idle epoch]

yes

if only if only if onlyyyyy you knew my logic💔💔

Ok so i need to find what a vertex and stae the veryex is

[cerulean sail]

Well, I'll take your word for it, for now

[cerulean sail]

Anyways you have this source here, does this help you a bit, comparing it to what you have in your question?

[cedar kiln]

@idle epoch Has your question been resolved?

[cedar kiln]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[edgy olive]

How do i factor 2x^2-x-45=0

[edgy olive]

I js need help factoring quadratics with a coefficient on the x^2

[indigo lagoon]

$2x^2-x-45=0$

[wraith dagger]

This is sad 😢

[indigo lagoon]

Alright, what have you tried?

[edgy olive]

Okay so i’ve tried multiply -45 by 2

And then divide it later

Although i had myselff guessing why i was wrong when i got x= -4.5 and x =5

Instead of x=4.5 and x=- 5

[gray hamlet]

can't you just apply quadratic formula?

[indigo lagoon]

how did you get -4.5?

[edgy olive]

Factoring faster

[edgy olive]

I probably didnt turn x into -x

[dusk finch]

those are correct i think

[edgy olive]

I got the negatives flipped

[dusk finch]

,calc 2*5^2 - 5 - 45

[wraith dagger]

Result:

0

[indigo lagoon]

That's correct

[edgy olive]

Oh sorry the equation was 2x^2+x-45

=0

[indigo lagoon]

I see

[edgy olive]

Yes and i got -4.5 and 5

But it’s supposed to be 4.5 and -5

[dusk finch]

in that case, it seems like you were striving for sum of +1 while you should be going for sum of -1

[gray hamlet]

no its not

i just did quadratic formula its -4.5 and 5

[dusk finch]

your sum has to be the negative of coefficient of x