general-2

[tribal warren]

15 years ago

[placid heath]

Ich vermute mal die können da auf mehr Leute verzichten

[tribal warren]

I was a baby

[pine ginkgo]

Arme uni

[viscid cape]

Yeah

[placid heath]

Südbaden hat btw auch von den höchsten Immobilienpreisen in DE

[tribal warren]

It felt very good to change, TIM does a good job

[placid heath]

Da ist echt platzmangel

[tribal warren]

cause I always had shitty internet

games, download things and buffering things was impossible

[placid heath]

Ich wohn nicht ohne Grund 25km von der uni weg

:D

[pine ginkgo]

25km?

[viscid cape]

I think the biggest demand nowadays is due to series indeed

[placid heath]

@sleek valve ich studiere Informatik

Ja

[tribal warren]

yea

[pine ginkgo]

Fährste ne stunde zur uni?

[placid heath]

Ja

[viscid cape]

I don't really watch anything so 🤷

[placid heath]

Mit Zug

[tribal warren]

Netflix actually had released some statistics

[pine ginkgo]

Autsch

[tribal warren]

and TIM is like the best ISP on their service

[placid heath]

Und dann noch Fahrrad oder bei Regen Straßenbahn

[pine ginkgo]

Autsch

[tribal warren]

I hope they don't get bad

[viscid cape]

I hope their market share grows, here there's pretty much a net-vivo duopoly

[placid heath]

ist 35-40min Zug und 15 min fahrrad

[tribal warren]

yea it'll grow

I don't hear many people with it, too

most of my friends have vivo

[placid heath]

In Freiburg wohnen kannste dir halt einfach ohne >2k Brutto nicht leisten

[pine ginkgo]

Rip :(

[placid heath]

Die bauen inzwischen wohnungen im industriegebiet

[pine ginkgo]

Man, ne stunde fahrt zur uni wäre für mich nen umziehgrund

[placid heath]

Naja ich mein

[viscid cape]

Solet eine Stundet ist nicht so schlimm, komm schon

[pine ginkgo]

Doch?

[placid heath]

So Wohnheim oder so geht dann schon wenn du nen nebenjob hast

aber das ist dann echt knapp an der armutsgrenze

[pine ginkgo]

:(

[placid heath]

Und für die Bescheinigung für die Tafel reichts dann allemal lol

[pine ginkgo]

Krass

[viscid cape]

Ich wohne 45 Minuten von der Uni entfernt und habe das nie schlimm gefunden

[placid heath]

Einige Kommilitonen kaufen da ein, weil Anspruch und halt Preise unschlagbar

[pine ginkgo]

Das ist ja auch keine stunde

[viscid cape]

Ganz zu schweigen davon, dass die öffentlichen Verkehrsmitteln in Brasilien viel viel schlechter sind als die deutschen

[tribal warren]

Ja wahrscheinlich

[viscid cape]

Dewegen muss man Lehrbücher im Handy mitnehmen und an der Bushaltestelle lernen 😸

[tribal warren]

Taking Sé at 6 pm

[placid heath]

Ich bin echt froh dass ich noch kein einziges Lehrbuch in 5 Semestern hatte

[pine ginkgo]

Jo

[placid heath]

Ich hab neulich für ne Aufgabe nen Paper im internet gefunden

[viscid cape]

Lol Berg 😛

[placid heath]

In dem es um genau das ging

War aber hinter Paywall

Für ein 10 seitiges Paper

[pine ginkgo]

Mhhh

[placid heath]

60€

Spätbühnenkapitalismus

Krebs ist das

[pine ginkgo]

Paywall solltest du aus dem uninetz umgehen können

Oder uni vpn

[placid heath]

Uninetz hab ich aber zuhause nicht

:(

[pine ginkgo]

Bieten die keine vpn an für dich?

[placid heath]

Äh

Ich kann per SSH an den Server

Reicht das?

[pine ginkgo]

Sollte

[placid heath]

Wie?

[tribal warren]

Na ja, Kryp, übermorgen muss ich ENEM machen

[pine ginkgo]

🤔

[placid heath]

Ich bin eher Mathematiker

Nicht Computermensch

[pine ginkgo]

Unsere uni lässt uns von zu hause aufs netz zugreifen

[tribal warren]

Also muss ich nach Sé gehen

😄

[placid heath]

Ich hab nicht viel Ahnung von sowas

Ich hab wie gesagt meinen Laptop mit Überspannung gegrillt

[viscid cape]

Ja aber es sollten viele Menschen dabei sein

[tribal warren]

Und komme ich um 18 Uhr wieder.

[viscid cape]

Es sollte nicht gefährlich sein

[tribal warren]

Ne

[pine ginkgo]

Nach papern außerhalb der uni zu suchen ist grausam

[tribal warren]

Es wird nicht gefährlich sein

[placid heath]

Ich sag dir

Wenn ich jemals Paper veröffentliche

Open-Source

Mit LaTeX sources

[tribal warren]

Aber die U-Bahn wird so voll sein D:

[placid heath]

Damit man auch jede Grafik reproduzieren kann

[pine ginkgo]

Hehe

[viscid cape]

Ja das wird sie bestimmt

[placid heath]

Jemals versucht nen tikz-graphen auf sichtbasis nachzubauen?

👌🏻 🔫

[tribal warren]

Letzter Sonntag war es so voll, dass ich mich nicht bewegen konnte.

:c

[viscid cape]

Zumindest habt ihr Ubahn

[tribal warren]

Was meinst du damit?

Wohnst du nicht in São Paulo?

[viscid cape]

Nein

[tribal warren]

Ach

Sondern in der Staat, oder?

[viscid cape]

Ja

[tribal warren]

Verstehe

[placid heath]

der Staat

[viscid cape]

Man sagt Bundesland

[pine ginkgo]

Eh

[viscid cape]

Und ja, es ist männlich

[tribal warren]

"Sondern in dem Staat, oder?"

[placid heath]

^

[pine ginkgo]

Man sagt nicht unbedingt bundesland

[placid heath]

Guter Berg

[tribal warren]

oops

im

hmm

idk why "im" sounds kinda weird here

[pine ginkgo]

Bundesland ist eher was für deutschland

[viscid cape]

Würdest du nicht sagen, das Kalifornien ein Bundesland sei?

[placid heath]

Because you want to emphasize dem bergie

[tribal warren]

yea

[placid heath]

dem refers to a certain state here

[pine ginkgo]

Nein, krypti

[tribal warren]

Korea you understand me

AMENO

[viscid cape]

Was würdest du eher sagen?

[pine ginkgo]

AMENO

[placid heath]

Pizza

[tribal warren]

was that

Sprachgefühl?

O:

[placid heath]

Probably

Just kill it with booze

[pine ginkgo]

Bundesstaat, krypti

[viscid cape]

Ach so, danke

Also Bundesstaat Berg

[tribal warren]

okay

Zum dritten Mal xD

[pine ginkgo]

Well, if brazil has a similar structure for their country

[tribal warren]

"Sondern in dem Bundesstaat, oder"?

[viscid cape]

👌

[tribal warren]

I thought you lived in the city

hmm

so you live in Campinas?

I assume

Kryp hast du deine Winterkursprüfung bestanden?

oder hast du die Bestätigung erhalten?

[viscid cape]

You'll never know where I live

[placid heath]

Hm

Brazil

[tribal warren]

Okayy

Did you get approved?

[pine ginkgo]

Krypti is a bot, bergi

[tribal warren]

plottwist

[viscid cape]

Die Prüfung habe ich schon abgelegt, aber der Auswahlprozess ist noch nicht zu Ende

[placid heath]

Everyone on the internet is a bot, except for you Solet.

[tribal warren]

aah

Viel Glück damit 😛

[viscid cape]

Danke, viel Glück bei Enem

[tribal warren]

Danke

[viscid cape]

Everytime I did it there was some retard that couldn't stop moving his foot

[tribal warren]

ich werde suchen, nicht zu schlafen 😛

haha

[viscid cape]

So I couldn't concentrate

[tribal warren]

my last sunday was:
-guy next to me whispering as he thought things
-camarote dos atrasados + panico na band (it just had to happen where I did the test, I'm that lucky)
-Corinthians vs. Palmeiras (yea I'm that lucky)

[pine ginkgo]

LUL

hahahaha

[tribal warren]

so yea

ENEM is the most awful test there is

[viscid cape]

Football and those humour shows are fucking retarded

[tribal warren]

exactly

they kept shouting after each goal

[placid heath]

goal?

:>

[tribal warren]

yea

a big game was going on as I was doing my test

[viscid cape]

Good for you, I bet most corinthianos and palmeirenses were thinking about it during the exam

[tribal warren]

and people were shouting on the streets

yeap

haha

[viscid cape]

I hope they fail and die

[placid heath]

^/ ·. /|

[viscid cape]

Fuckers

[tribal warren]

LOL

[ocean robin]

wow

[tribal warren]

The side or Kryp we'll never see again

but yea

[viscid cape]

Sorry Just hate football.

[tribal warren]

they fucked up my concentration

[viscid cape]

Except Chuck

[tribal warren]

I don't hate football, I hate how brazilians behave about it

torcidas

I hate torcidas

[viscid cape]

I learnt to hate the former due to the latter

[tribal warren]

haha

but yea

I'm looking forward to UNICHAMPS

and FUVEST

I was redoing a UNICAMP test today, I found it pretty easy tbh, I think it'll be a test to get my self-esteem on a higher level

before FUVEST de_stroys me

[pine ginkgo]

UNICHAMP

[tribal warren]

[viscid cape]

Well if it's easy all the better for you

:3

[tribal warren]

only 4 alternatives per question

questions with shorter texts

easy math questions

i luv it

[pine ginkgo]

I hate multiple choice questions so much

[viscid cape]

I loved them

[tribal warren]

I prefer written ones too

but I learned to deal with multiple choice

I mean I have too

I just really hate doing essays

[viscid cape]

Yeah those made me nervous too

But it's an important skill, there's no denying

[ocean robin]

WHO PUT THE SNAIL

[tribal warren]

misclick

[ocean robin]

GOOD

[tribal warren]

don't eat it

pls

[ocean robin]

UUUUGH

[viscid cape]

Korea did

[tribal warren]

Yea I mean

I can write

but like I want to do Computer Science, it shouldn't matter so much to my application'

like as much as it matters for a person that's applying to law school

[viscid cape]

Yes

[tribal warren]

btw when I was leaving ENEM last sunday, one guy handled his test to the person that was applying

and she like stood there and I could see the last part of his essay

he jumped 2 lines and wrote

Title:

not even kidding

the guy wrote the title at the last line xD

gave me confidence: I thought, huh, that's who I'm against

[viscid cape]

Yes I've heard several people didn't know what to write in essay

[tribal warren]

I think my essay wasn't so bad

[viscid cape]

It could've been a brilliant poem though

Written upside down

To show a new perspective

[tribal warren]

LOL

[viscid cape]

Of

Things

[tribal warren]

a reflect of society

literally

[viscid cape]

Loool brilliant

😄

[tribal warren]

but I had to rush it cause I didn't have much time

so my essay was not bad but it wasn't what I wanted

[viscid cape]

It always is

like that

[tribal warren]

good thing I will only have to do essays in january now

which is also bad cause I'll have many months with 0 practice

[ocean robin]

Okay so Krypti tbh there's a lot of words I don't know here so dict.cc spam.

[viscid cape]

No problemo, learning to use dictionary is important

[red pewter]

my project got moved ❤

I don't have to worry anymore ❤

[opal sequoia]

Hey is this appropriate for this server or not?

Hint: it's not.

[red pewter]

good thing you got a hint then

[opal sequoia]

Thanks.

[red pewter]

@opal sequoia now you just look like the jerk who yelled at me for not stressing about my project :33

[opal sequoia]

😄

Bad Bell. 😠

[red pewter]

D:

[sudden panther]

Ban Base. Always so mean.

[toxic urchin]

Ban kbell too pls

[red pewter]

D:

[sudden panther]

Deal. Kbell is now banned, whoever the meme that is.

[ocean robin]

So I did say that b = -1 / c = -12 but problem. How can I do the product of c that way b has -1 as the result?

[opal sequoia]

Well, let's try it.

Tell me some numbers that could have a product of -12.

[ocean robin]

-12*1 / 12*-1 / -6*2 / 6*-2 / 4*-3 / -3*4

[opal sequoia]

Yeah, good.

One of those adds to -1

[ocean robin]

Wait.

[sleek valve]

you have 4*-3 repeated

[ocean robin]

-4*3

[opal sequoia]

Oh, good catch, Greywind.

[ocean robin]

This one works.

[opal sequoia]

Yes. 😄

Good work.

[ocean robin]

So b = -4*3 and then c = (-4)+3 = -1

[opal sequoia]

Yep.

[sleek valve]

good work, got it by text only. It's impressive.
FINISH IT!

Nope, you got c & b interchanged?

swaped

[ocean robin]

ops 👀

wait

yes

b = -1

c = -12

[sleek valve]

therefore, x1 & x2?

[ocean robin]

(x +(-4))(x + 3) So I was going to post that first

x1 = 4 / x2 = -3

[sleek valve]

correct.

[opal sequoia]

Yeah, but I did forget to mention something, Flappy.

[ocean robin]

Oh, what is it?

[opal sequoia]

You are actually solving this equation. If it didn't have =0 then it wouldn't work.

[ocean robin]

ah

[sudden panther]

FLOPS

[sleek valve]

was going to send this lol

[sudden panther]

THINK FAST

[ocean robin]

YES

WHAT

[ocean robin]

IT'S 2

[sudden panther]

ITS NOT 2

WELL IT IS 2

[ocean robin]

WHAT THE HEC- GOOD

[sudden panther]

BUT THAT'S NOT THE ONLY SOLUTION. THINK BETTER

[opal sequoia]

But you are meant to do it the long way, Flappy. 😄

[ocean robin]

WHAT

[sleek valve]

WHY ARE YOU SCREAMING?

[ocean robin]

I DUNNO

ARREM BEGAN

[sleek valve]

LOWER YOUR VOICES! BELL IS SLEEPING

[sudden panther]

IT'S 2
ARREM BEGAN
fok u

[ocean robin]

oh yes

🤔

[opal sequoia]

Anyways, the important thing about what I mentioned, Flappy, is that when you write this part (x +(-4))(x + 3)

You have to write it like

[ocean robin]

oh

[opal sequoia]

If you were doing a test or something.

[ocean robin]

So I must add the 0 at the end?

[opal sequoia]

Yeah, because that's why you know that one of them has to be 0.

So you can do the next step.

Makes sense?

[ocean robin]

Yep.

[sleek valve]

is okay, no need for the +(-4)...

[opal sequoia]

Eh, it doesn't matter, GreyWind.

She wouldn't lose marks for writing it differently.

But she would lose marks for not showing that it equals zero.

[sudden panther]

She'd also lose marks for fokken slacking off and not solving my problem.

[opal sequoia]

True, Arrem. 😄

[ocean robin]

Seems like I am "supposed" to learn this in a few months.

[prime raft]

You get a few months? Lucky

[opal sequoia]

Oh, but it's also worth mentioning that you only need the zero to solve for x. If you had like Factorize x^2+7x+12 then you don't need the zero because you are only rewriting it.

[sleek valve]

You will be ahead of your class.

[prime raft]

We got like a week

[ocean robin]

Okay so in short, the factorizing is way faster and acts the same way as the formula?

[prime raft]

Yes

[opal sequoia]

Yeah.

[ocean robin]

Well that is really convienent.

[sleek valve]

It's the same equation just in another form

[prime raft]

The formula is a painn to do sometimes when you can’t factor

[prime raft]

...can I solve it too?

[sleek valve]

Why not.

[opal sequoia]

Sure, you can solve it, Rami. Flappy is working on another problem already.

[prime raft]

Okay, thanks

[sleek valve]

Those are basically the same formuals.

[prime raft]

Yeah cause you’ll subt. 2

[ocean robin]

Okay so this one now?

[prime raft]

From 20

[opal sequoia]

Flappy, the one Arrem gave you.

[ocean robin]

Uh, which one?

[sleek valve]

Solve that and let's see if you can do them where a > 1.

https://cdn.discordapp.com/attachments/305746952929280001/378867898728579072/latex.png

This one, Flappy.

[ocean robin]

Ah. Ah.

🤔

when you can't do equations with fractions yet

[opal sequoia]

You probably shouldn't try to make Flappy learn how to do a > 1 equations yet. She really needs to learn to understand the basics better first.

Or she'll confuse the rules she's learning.

[pine ginkgo]

You can always get rid of fractions, flops :)

[ocean robin]

how D:

[sleek valve]

Base, just the concept of it and simple examples.

[ocean robin]

Because I actually want to do that.

[sleek valve]

MULTIPLY

[ocean robin]

Thee opposite of the number?

🤔

[pine ginkgo]

... say inverse

[ocean robin]

8*(-x)

[pine ginkgo]

You want to "remove" 1/x

[opal sequoia]

Well, I'm not going to stop you from doing it, but I don't think it's a good idea.

[pine ginkgo]

Mhhh

[ocean robin]

Yeah sorry Solet, Frenchies actually say "the opposite/inverse of a number".

[prime raft]

X= -9 x= -2 for the one above this one. Tried to do it in my head then everything got jumbled with me moving it around and I needed to grab paper 😂 sorry.

[pine ginkgo]

Oh, do what base wants

[sleek valve]

And the solution is correct, Rami!

[ocean robin]

mmmh

[opal sequoia]

Oh this is fine Solet.

[ocean robin]

So we multiply by the inverse, huh?

like (-8)*(-x)?

🤔

[opal sequoia]

Nuh.

[prime raft]

Yep, we recently did this in class a few weeks ago, which i feel is weird for a pre-calc class bc it’s just algebra 2 all over again. 🤦🏽‍♀️

[opal sequoia]

You multiply by negatives when you want to change the sign, Flappy.

So let's say you have: -x = 3

Then you multiply by -1 to get: x = -3

Makes sense?

[ocean robin]

Yep.

[sleek valve]

Recipocal is the term you're looking for.

[opal sequoia]

But then when you want to get rid of a fraction, that's different.

[ocean robin]

How do we do?

[opal sequoia]

If you have 8/x what would you multiply it by to make it just 8?

Or... let's start with the division one first.

If you have 8x, what do you divide by to get just x?

[ocean robin]

8?

[opal sequoia]

Yeah, exactly.

[opal sequoia]

Oh, doesn't work like that. 😄

Well, you see the idea anyway.

[ocean robin]

Yeah.

[opal sequoia]

You multiply by the reciprocal. So if you have 8x and you want to get just 8, you multiply by 1/x.

Makes sense?

Because x * (1/x) = 1

And 8 * (1/8) = 1

[ocean robin]

Oooh.

[opal sequoia]

So if you wanted to get just the 8, or just the x, you multiply the reciprocal so it turns the part you don't want into a 1.

Basically.

Now, if you have the opposite one, where you have 8/x

You do the same thing. You want to get rid of x, so you find the reciprical and multiply it. So you have the x part to become 1. x * (1/x) = 1.

Now, you already have the 1/x

So you have to multiply by the x instead this time.

[viscid cape]

"the reciprocal"

[ocean robin]

So (1/x)*1 🤔

or no

Let me use brackets in this case

[opal sequoia]

Well, 8/x is the same as 8*(1/x)

[ocean robin]

Yeah.

[opal sequoia]

And you want to make it into 8*1

So what do you multiply 1/x by to get 1?

[ocean robin]

uuuh

🤔

[sudden panther]

.>latex &firstlinegoeshere\\
&secondlinegoeshere\\
&thirdlinegoeshereandyougetthepoint

[ocean robin]

was going to say 1 and then I doubted

[opal sequoia]

x * (1/x) = 1.

What is 1 * (1/x), Flappy?

[ocean robin]

1/x?

The same?

[opal sequoia]

Yeah.

[pine ginkgo]

yes

[opal sequoia]

Exactly.

[pine ginkgo]

so... 1 is not the answer

:D

[ocean robin]

I saw that x)

[pine ginkgo]

you can always try it

[ocean robin]

So it's x, huh?

[pine ginkgo]

you want the result to be 1

[opal sequoia]

Yeah, Flappy. x is correct for this.

[pine ginkgo]

assuming you have something like 1/5

you want to multiply it with 5 to get 1

[ocean robin]

Yeah.

[pine ginkgo]

what would you multiply 2/x with to get 1?

[ocean robin]

x?

[pine ginkgo]

what happens if you do that, flops

[ocean robin]

🤔

[pine ginkgo]

don't think about it

if you give an answer

calculate it

[opal sequoia]

(2/x)*x = ?

[ocean robin]

(2/x)*x = 2? 🤔

[pine ginkgo]

yes

[sudden panther]

?

[pine ginkgo]

so.. not 1

i ask again

[sudden panther]

Is the question mark really needed? 😛

[ocean robin]

mmmh

maybe Arrem

[pine ginkgo]

what would you multiply 2/x with to get 1?

[ocean robin]

Was going to say 0,5 for some weird reason

🤔

[sudden panther]

Check that.

[pine ginkgo]

and

what do you say?

[opal sequoia]

Hint: the reciprocal of a/b is b/a.

[pine ginkgo]

(hint, base, hint 😦 )

[ocean robin]

Can Ballum by the way.

[valid ice]

Sh i only woke up like 2 hours ago

[pine ginkgo]

nice answer callum

anyway

[ocean robin]

uh well I am not too sure about that

[sudden panther]

Hint:

[valid ice]

still slightly hungover 😶

[pine ginkgo]

okay

flops

[sudden panther]

you can also multiply with fractions, so try that.

[pine ginkgo]

assuming you have 2

what do you multiply it with to get 1

[ocean robin]

Can we multiply with the inverse?

[sudden panther]

Who's stopping you.

[ocean robin]

That would be uuuh

🤔

[opal sequoia]

Yes. Reciprocal = multiplicative inverse.

[ocean robin]

Well if we multiply the two same fractions, it would give 1

[pine ginkgo]

... if we do what?

[sudden panther]

4 realz?

[opal sequoia]

Example, Flappy?

[ocean robin]

🤔

yeah, that was quite my point but eh, guess it's wrong

[pine ginkgo]

yes

so

do you remember

[ocean robin]

So now the inverse thing. Maybe it can help.

🤔

[pine ginkgo]

maybe

[ocean robin]

What if we multiply it with the inverse?

[opal sequoia]

What's the inverse of 2/x, Flappy?

[sudden panther]

You tell us.

[pine ginkgo]

yeah, try it?

[ocean robin]

x/2?

[opal sequoia]

Okay, try that.

[ocean robin]

So like (2/x)*(x/2)

[pine ginkgo]

lol

[sudden panther]

Correct.

[sudden panther]

Go do that.

[ocean robin]

🤔

[pine ginkgo]

i don't understand how we go to this

considering the questions and the answers you gave

but

[ocean robin]

2x/2x

[pine ginkgo]

nice

okay

try this flops

[ocean robin]

So 1.

[pine ginkgo]

3x/x²

what do you multiply that with to get 1

[ocean robin]

oh my gos

🤔

x^2/3x?

[pine ginkgo]

yes

i hope you are seeing a pattern

[ocean robin]

Yeah.

[pine ginkgo]

and well

base's hint gave it all way anyway

the reciprocal of a/b is b/a

[opal sequoia]

Yeah.

[pine ginkgo]

"hint"

"solution"

:D

[ocean robin]

[opal sequoia]

She needed to know it though in this case.

[pine ginkgo]

yep

flops, this is something you really need to know

so memorize it

[ocean robin]

yus will do

[opal sequoia]

https://cdn.discordapp.com/attachments/305746952929280001/378867898728579072/latex.png

[ocean robin]

So back to that.

[pine ginkgo]

don't forget what casca taught you about equations

[ocean robin]

[opal sequoia]

They have to stay equal.

[ocean robin]

Yeah.

[pine ginkgo]

😱

[opal sequoia]

Since they are equations.

[pine ginkgo]

okay, then try it

:D

[ocean robin]

So we do the thingo I just learned

(8/x)*(x/8) = 1 🤔

[opal sequoia]

Yep, but you just want to get rid of the x, not the whole 8/x.

[ocean robin]

ah

So we multiply by x?

[opal sequoia]

Well, actually.

You can do it either way.

But yeah, just by x.

[sudden panther]

You multiply by x, while keeping in mind that you're dealing with an equation.

Please keep in mind that you're dealing with an equation.

[ocean robin]

dammit

[sudden panther]

Because the fact that you are dealing with an equation is something that should be kept in mind.

[opal sequoia]

😄

[ocean robin]

But hmmm

x*x + 2 = (8/x)*x 🤔

[opal sequoia]

Nuh.

Try again.

[ocean robin]

i am actually not sure about this at all

[sudden panther]

You forgot the most important step.

[ocean robin]

lol okay

how convienent

[sudden panther]

The part where you keep in mind that you're dealing with an equation

Wait uh.

[opal sequoia]

So, the rule with equations is... when you perform some action on the whole equation, you have to do it to both sides.

[sudden panther]

You forgot parts of the most important step. I don't even know.

[ocean robin]

Waiting.

wait what

I did mutually x on the other side

[pine ginkgo]

not really

[sudden panther]

Not quite.

[opal sequoia]

You have to multiply the WHOLE side by x.

[ocean robin]

AH.

[sudden panther]

AH SHE SEES IT NOW

[ocean robin]

YES MAYBE

[pine ginkgo]

DID SHE ALSO KNOW ABOUT IT?

[opal sequoia]

Basically, when you are doing these, put brackets around each side before you do the action.

[ocean robin]

(x+ 2)*x = (8/x)*x

[opal sequoia]

Good.

[ocean robin]

NO I DIDN'T SOLET

[sudden panther]

Now evaluate that.

[ocean robin]

🤔

So the side on the right is 8, sure

and on the left uuuh

Is it like k (a + b)?

[opal sequoia]

Yeah.

[ocean robin]

okay so x*x + 2*x = x^2 + 2x

[pine ginkgo]

btw flops

http://prntscr.com/h9202o

[ocean robin]

too many x'es

[pine ginkgo]

this is one of the ways you can write it down

[ocean robin]

🤔

oh

I see.

[sudden panther]

SO

[pine ginkgo]

the operations after | indicate what you do with the equations in the next step

[sudden panther]

What do you end up with.

[pine ginkgo]

it's very helpful if you write it down in a notation similar to that, that fits your style

[ocean robin]

so x^2 + 2x = 8

[opal sequoia]

🍪

[sudden panther]

No cookies.

She's not done yet.

[opal sequoia]

😄

[ocean robin]

It's finised?

🤔

[pine ginkgo]

no

solve it

:D

[sudden panther]

Look what you did.

[opal sequoia]

Nuh, but you did the hardest part.

[ocean robin]

And what about the square?

[sleek valve]

The RHS must equal ZERO

[ocean robin]

because I have had trouble with that in my entire life

[sudden panther]

https://giphy.com/gifs/season-13-the-simpsons-13x14-l2JeiuwmhZlkrVOkU

Flops. What have we been doing for the last 2 days?

[ocean robin]

Arrem commits sucide.

🤔

The formula?

[opal sequoia]

He wants you to solve for x.

[sudden panther]

What else?

[ocean robin]

Fractions?

[pine ginkgo]

base's hints are spoilers 😦

what.

base's hints are spoilers that get ignored

[opal sequoia]

😄

[pine ginkgo]

so... eh good job?

[sudden panther]

The thing that Nola taught you for meme's sake. Try to see how you could use that here.

[ocean robin]

🤔

how though

[pine ginkgo]

well

what keeps you from using it

[ocean robin]

b and c are not on the same side

[sudden panther]

Can you commit 2 suicides? 🤔

[pine ginkgo]

so

[ocean robin]

🤔

[pine ginkgo]

how can you change that flops?

[ocean robin]

oooh wait wait wait

x^2 + 2x -8 = 8 -8

x^2 + 2x -8 = 0

AND THEN LET'S DO IT

[pine ginkgo]

http://prntscr.com/h921qg

as another example

[ocean robin]

Oh yeah. Thanks Solet.

[viscid cape]

lel mmmm

[ocean robin]

So b = 2 and c = -8

mmh

c = 4*-2 and then b = 4 - 2 = 2

(x + 4)(x - 2) x1 = -4 x2 = 2

[sudden panther]

Shore thing.

So if I have

[sudden panther]

What do I need to multiply it with to get 1?

[ocean robin]

(w + z^2)/xy 🤔

[viscid cape]

Good pupil

[sudden panther]

She actually bothered to use parentheses. Nice.

[pine ginkgo]

she is learning 😱

[ocean robin]

oh mY gOd

[sudden panther]

2039 is gonna come sooner than we thought. 😱

[ocean robin]

[pine ginkgo]

i can hardly wait 😱

now we have to teach her to do those calculations in 5 seconds

and without pen and paper

🤔

[ocean robin]

🤔

[sudden panther]

So Flops what about

[sleek valve]

maybe an easier one that doesn't leave fractions?

[ocean robin]

b = 1 / c = -1

🤔

the heck is that

[sudden panther]

Eh it's not about the problem.

[sleek valve]

Oh

[sudden panther]

I don't really care about the actual solution, I care about how she'll approach it.

[ocean robin]

Well there's a problem there.

[sudden panther]

Yes?

[sleek valve]

Use the Force.

[ocean robin]

Okay -1 can be only 1*-1, but I must search something to get 1 for b 🤔

and uh weird

[sudden panther]

Ehehe.

Here's the thing Flops. That method only works when a = 1. 😉

[ocean robin]

wot

a = 1?

[sudden panther]

Yes. That's why we've been ignoring the a the entire time.

But when a isn't one, such as in this case, you can't use that. 😛

[ocean robin]

Yeah.

mmmh how can I do this

[sudden panther]

The shortcut isn't the only way of solving these. 😉

[pine ginkgo]

You already know the other way :p

For your knowledge, you can do two different things

[ocean robin]

So I must do the entire formula?

[opal sequoia]

You can do it that way. You don't have to.

Hmm, let's say, you have (x + m)(x + n), where m and n are just some numbers.

What do you get if you expand that, Flappy?

[ocean robin]

x*x + n*x + m*x + m*n

x^2 + nx + mx + mn

[opal sequoia]

Yep.

And can also be written as: x^2 + (n + m)x + mn

[ocean robin]

Oh yeah.

[opal sequoia]

See why you have to do the sum/product thing for that Nola method?

[ocean robin]

🤔

Not really.

[opal sequoia]

What is b here?

[ocean robin]

In the expression I just did?

uuuh

[opal sequoia]

Yeah.

[ocean robin]

Dunno if it's m or n.

[pine ginkgo]

mhh

i wonder which

[sudden panther]

🇸 🇦 🇬 🇦 🏙

[opal sequoia]

Well let's start with c first then. What's c?

[sudden panther]

Also FLops.

Look at what Base wrote, not at what you wrote.

[ocean robin]

Oh.

🤔

well uh my problem is still here

b can be (n + m)? I don't think so...

[sudden panther]

Let's pretend that it is.

What would c be by that logic?

[ocean robin]

nm

[sudden panther]

Can you write that out?

b = ???
c = ???

[ocean robin]

b = (n + m) / c = nm

[sudden panther]

Does that look familiar?

[ocean robin]

🤔

[pine ginkgo]

mhh

[ocean robin]

Factoring with the thing Nola taught me? Ehh...

[opal sequoia]

Okay, let's look at x^2+5+6. By the Nola method, how do you factor this?

[ocean robin]

first finding b and c

[opal sequoia]

Yep, and then what?

[ocean robin]

Then finding which numbers have the product of c and see if these numbers can be added to do b

[opal sequoia]

Yep, which ones are they here?

[ocean robin]

That was what I was pondering about 🤔

b= 5 / c = 6

3*2 = 6 3 + 2 = 5

[opal sequoia]

Yep.

b = n + m
c = nm

[ocean robin]

[opal sequoia]

And in the template form?

[ocean robin]

(x + n)(x + m)

[opal sequoia]

Yep. 😄

[ocean robin]

x1 = -n / x2 = -m

[opal sequoia]

Yep, and with the actual numbers in there?

[ocean robin]

(x + 3)(x + 2) x1 = -3 / x2 = -2 ^^

[opal sequoia]

Yeah, perfect.

So does it make sense? The reason why you do that product/sum stuff is because that's how it is when you expand (x + m)(x + n)

[ocean robin]

Yeah.

[opal sequoia]

So... this is a good thing to know, when you are learning to solve equations where a != 1

[ocean robin]

Yeah, okay.

[opal sequoia]

You're doing a really good job though. I'm impressed.

[ocean robin]

Thanks Base. :D

[opal sequoia]

Now, if you want to try another one, just try another one like this: x - 7 = (-12)/x

Wow, sorry, I messed it up again.

[ocean robin]

(x -7)*x = (-12/x)*x (x - 7)*x = -12 x^2 - 7x = -12 x^2 - 7x +12 = -12 +12 x^2 - 7x + 12 = 0

ahhhh

[opal sequoia]

Well, it's almost the same, so don't worry.

[ocean robin]

So wait I'll change the signs.

[sudden panther]

Hm.

Try fixing it yourself yeah.

Change any sign you want to make it solvable.

[ocean robin]

So I did that. Okay.

[opal sequoia]

Nice work.

[ocean robin]

b = -7 / c = 12

[sudden panther]

Oh Base already edited his message. 😦

[ocean robin]

c = -3*-4 = 12 -7 = (-3)+(-4)

[opal sequoia]

It's okay, you can do a tricky one if you want after this, Arrem. 😄

[ocean robin]

(x - 3)(x - 4) = 0 x1 = 3 / x2 = 4

[opal sequoia]

Well, there's something you have to remember to write there, Flappy.

[ocean robin]

oh yeah

[opal sequoia]

Okay, perfect.

[valid ice]

🤔 x^2 = -1 next? 😃

[sudden panther]

Bad Callum.

[opal sequoia]

Actually, let's try one of those.

[ocean robin]

damn what what what

[opal sequoia]

x^2 - 4 = 0

[ocean robin]

i^2 = -1?

what

🤔

[sudden panther]

Don't do complex numbers before she can handle real numbers please. 😛

[opal sequoia]

This one I just wrote. Can you try to solve it with the Nola method?

[valid ice]

Awh Algesnow is boring 😦

[ocean robin]

Where's c?

[sudden panther]

Right there.

[ocean robin]

Don't tell me it's 0.

[opal sequoia]

Well, remember what I said about b and c, Flappy. How do you find b?

[sudden panther]

It sure as meme isn't 0.

[opal sequoia]

The b is the number ...

[ocean robin]

Well there's a x next to it.

[opal sequoia]

Yep.

And which is c?

[ocean robin]

The one which doesn't.

[opal sequoia]

Yep. So what's c here?

[ocean robin]

• 4?

[opal sequoia]

Yep, exactly.

[ocean robin]

Then b is x^2? wait what

[opal sequoia]

Nuh.

[ocean robin]

How?

Yeah it's a.

[opal sequoia]

Even though it looks like the bx is missing, what could make it go missing?

[ocean robin]

mmmh 🤔

[valid ice]

the mafia got it 😠

[opal sequoia]

😄

[ocean robin]

maybe

[opal sequoia]

What value of b could make x disappear?

[ocean robin]

b and x can be the same numbers?

🤔

[opal sequoia]

Not quite.

[valid ice]

if only there was a magical number that made things disappear

[ocean robin]

[opal sequoia]

Or... let's look at it a different way.

If you have 2 + x = 2, what is x?

[sudden panther]

Nah, thanks.

[opal sequoia]

Do it in German, Käse.

[ocean robin]

2 + x = 2

x can be 0? Since when?

[valid ice]

since forever

[opal sequoia]

x can be any number, Flappy. 😄

[ocean robin]

TIL.

[opal sequoia]

So now let's look at: x^2 - 4 = 0

Do you see where the bx might have gone?

[ocean robin]

It was substracted while doing the equation?

[opal sequoia]

Nuh.

For this one, I'll just show you, so you get the idea.

[sudden panther]

Could you try to show a bit more maturity please? 😃

[ocean robin]

Wow pretty impressive that the bit didn't kill this message.

[opal sequoia]

x^2 + 0x - 4 = 0

[ocean robin]

ah.

[sudden panther]

Bot only reacts to letters and numbers. I'll have to change that.

[opal sequoia]

Do you see why it disappears, Flappy?

[sudden panther]

Child or not, we expect everyone to behave. 😉

[ocean robin]

Yeah, because it's 0. We don't need to write it.

[opal sequoia]

Yep, exactly!

[valid ice]

^ yes good floeps

[opal sequoia]

But now you can see the hidden b.

[ocean robin]

Yeah.

[sudden panther]

And b is?

[opal sequoia]

Anytime you have any equation, you can always add anything if it's times by 0.

[ocean robin]

I must go for a bit and then I say the value of b.

[opal sequoia]

Okay, have fun.

[sudden panther]

You're excused.

Okay let's make that a formal warning to behave.

That would be nice of you.

[valid ice]

no general2 is for maths

go to #german-only

😃

[ocean robin]

Okay I am back.

So b is 0?

🤔

[opal sequoia]

Yep!

[ocean robin]

oh wow

So let's do that now

b = 0 / c = -4

🤔

[sudden panther]

https://giphy.com/gifs/reactionseditor-winona-ryder-26xBI73gWquCBBCDe Base, Floop and Arrim

[ocean robin]

Mh, I must find the sum of c and which would do 0 as a sum.

how

🤔

oh ez

2*-2

2 - 2 = 0

Okay so that is settled now (x + 2)(x - 2)

x1 = -2 / x2 = 2

[sudden panther]

Okay.

Is there an easier way to get to that same solution?

[ocean robin]

There is?

[valid ice]

oh please

[pine ginkgo]

you have

[thick charm]

ah I see it now

[valid ice]

i went over this one with you floops

do me proud 😃

[pine ginkgo]

x² - 4 = 0

[ocean robin]

D:

think think think

[valid ice]

x squared minus 4

how else can you write four? 😛

[ocean robin]

2 + 2?

[pine ginkgo]

mhh

[valid ice]

almost

[pine ginkgo]

flops

assume you have x - 4 = 0

when is the equation zero

[tribal warren]

👁

[pine ginkgo]

you can also write that equation as x = 4

[valid ice]

ohwaitgoodsolet

[pine ginkgo]

as you have done it before

[ocean robin]

ah so

[pine ginkgo]

noooow

[ocean robin]

uh

[valid ice]

i was gonna go for a different way

[pine ginkgo]

do the same with x² - 4 = 0

i will be busy in 10 seconds anyway

sooo have fun callum :D

[ocean robin]

x - 4+4 = 0+4?

[sour mesa]

wow

[ocean robin]

🤔

[pine ginkgo]

no

[sour mesa]

hey!

[valid ice]

x^2 - 4 = 0

[pine ginkgo]

okay callum

[valid ice]

hola nola

[pine ginkgo]

take over

[ocean robin]

[pine ginkgo]

i be playing games

[valid ice]

have fun 😢

[ocean robin]

See you Solet. ^^

[sour mesa]

What are we asking flops now

[ocean robin]

something I am confused about

[valid ice]

the easier way of solving x^2 - 4 = 0

[tribal warren]

Luna professial ployor

[valid ice]

What is it floops?

[sour mesa]

give her an quadratic equation that she has to solve with quadratic factorization

[ocean robin]

we did it way too much today scroll up

[valid ice]

k so, back to x^2 - 4 = 0

you can write x - 4 = 0 as x = 4, so you can write x^2 - 4 = 0 as..

[ocean robin]

x^2 = 4 🤔

[valid ice]

yes

now solve for x ^^

[ocean robin]

2

[valid ice]

no

[ocean robin]

or -2

shiet

[valid ice]

yes

so you know the roots of the equation

[sour mesa]

quick question

[valid ice]

you can get to the simplified one

yes nola

[sudden panther]

The answer is 2 * pi * e / 3

[sour mesa]

if I have 3x(x-4) = 2x(x-9) can I get 2x(x-9) to the other side

[valid ice]

also flaps, looking at x^2-4=0, there's another easy way to do it

[sour mesa]

Arrem

plz

don't confuse her with the e

[sudden panther]

Subtract it from both sides and you can.

Or divide.

[sour mesa]

thx

[ocean robin]

Another easy way to do it?

[valid ice]

depending on what you are doing, subtraction is better there

yes

[ocean robin]

🤔

[valid ice]

what type of number is 4? 😛

[ocean robin]

uh

I don't know the term in English

[fair iron]

Say it in French.

[valid ice]

what is it in french?

[sour mesa]

just solving it with A × B = 0

[ocean robin]

Pair?

Un nombre pair.

[valid ice]

c'est comme une nombre carré? 🤔

[sudden panther]

Lol. Even.

[ocean robin]

Hein? 🤔

[sudden panther]

Kyoot.

[valid ice]

🤔 what times what is 4? 😛

[ocean robin]

Un nombre au carré c'est 4^2, Callum, on dit "4 au carré"

AH

2*2?

or

[valid ice]

yes, so four is a square number

[ocean robin]

-2*-2

[valid ice]

now, x^2 - 4 = 0

[ocean robin]

🤔

[sudden panther]

A perfect square number in fact.

[valid ice]

it is the difference between...

[ocean robin]

Because some are not perfect?

[valid ice]

like sqrt(2)

that's not perfect as it isn't a whole number

[opal sequoia]

All numbers are perfect in their own way.

[valid ice]

there's nothing perfect about 13.

[opal sequoia]

But some are mathematically perfect. 😄

[hot cloak]

X=2

[valid ice]

not quite Ahmad, what is (-2)^2

[ocean robin]

I love 11.

[valid ice]

so flops, there you have the difference between two squares

don't get distracted by numbers