How would I do this?

[dreamy flint]

<@&791435371564892232>

[knotty ibex]

they meet so solve the simultaneous equations by substitution

[dreamy flint]

I'm still confused by it

[knotty ibex]

see what happens when you use the discriminant

[knotty ibex]

I now understand why you're struggling

you kinda need to know what it is

if you look at the quadratic formula, the discriminant is just the b²-4ac part

it tells you how many roots of a quadratic there are

greater than 0 is 2 distinct real

[dreamy flint]

So there are 2 roots rn

[knotty ibex]

= 0 is 1 root (technically 2 repeated)

yes because the question says

[dreamy flint]

Ohhh yea

[knotty ibex]

two distinct points

[dreamy flint]

My bad😭😭

[knotty ibex]

-3x+c=1/x+5

[dreamy flint]

Wait why did you put all that again?

[knotty ibex]

what

[dreamy flint]

-3x+c=1/x+5

[knotty ibex]

I made them equal to each other

they meet

[dreamy flint]

Ohhhhhhh

[knotty ibex]

then tidy up

[dreamy flint]

I'm failing maths bro

[knotty ibex]

-3x=1/x - (c+5)

-3x-1/x= (5-c)

[knotty ibex]

with that attitude yeah u will

[dreamy flint]

My bad

[knotty ibex]

believe in yourself and you'll get what you want in life

[dreamy flint]

I'll try😭

[dreamy flint]

Wait how did you add the c to /x+5? Wouldn't you have to do it to the side?

So like 1/x+5 +C

[knotty ibex]

I did tbf

let me do it on a whiteboard

[dreamy flint]

Oh

[dreamy flint]

Yes please

[knotty ibex]

supposed to be + 1

[dreamy flint]

Ohhhh

I see now

Dam bro idk how I was gonna get that😭😭😭

[dreamy flint]

Thank you bro

[knotty ibex]

you have to recognise that if the answer they want doesn't contain x's and a different variable, you're gonna need to use the discriminant

[dreamy flint]

Wait hold on I'm looking at it again, why did you square it in -3x/1?

[knotty ibex]

the discriminat gets rid of x's

[dreamy flint]

Yea I'm gonna have to revise a lot😭😭

[knotty ibex]

since it uses the coefficients

[dreamy flint]

Ohhhhh I see

[knotty ibex]

circle the bit you're on about

[dreamy flint]

Like this one

[dreamy flint]

Oh you times it

[knotty ibex]

yeah it's different denominators

[dreamy flint]

OHHHHH WHY DIDNT I CLOCK THAT

[knotty ibex]

cross multiplying fractions is quicker than finding a common denominator when doing algebraic fractions

[dreamy flint]

True true

Thanks for helping me I was confused for a good hour on this😭😭

[knotty ibex]

yeah nw

the textbook will loads of examples for discriminant

if you do edexcel, it's in chapter 2

[dreamy flint]

Ohhh this will be helpful

[dreamy flint]

Thank you

[knotty ibex]

the textbook is quite useful lol

[dreamy flint]

I haven't rll been using it so maybe that's why

[knotty ibex]

did you end up getting the full answer btw

[dreamy flint]

Im doing it from the start without looking to see how much I've retained first

[knotty ibex]

ah nice

[dreamy flint]

How come this part is (5-c)^2 instead of -x(5-c)^2?

[knotty ibex]

we consider coefficients only

[dreamy flint]

Ohhh okay

[knotty ibex]

the b value is (5-c)

[dreamy flint]

ohhh yeaaaa

[knotty ibex]

since the coefficient of x is (5-c)

[dreamy flint]

Jeez I gotta start remembering stuff

[dreamy flint]

Ty

[knotty ibex]

it comes with time practice

it massively helps me that I already knew what the discriminant was in y11

and the fact I did gcse fm

[dreamy flint]

Whattttttt

[dreamy flint]

DAYUM

You smart smart

[knotty ibex]

so I basically know all of AS maths up to as vectors really

I know as differentiation and integration already

[dreamy flint]

Mannn I wish I did something like this😭

[knotty ibex]

Well differentiation from gcse but integration from self teaching

[dreamy flint]

Oh wow teaching yourself a level topics seems difficult

[knotty ibex]

tbf it's not that bad

tl maths is the goat

[dreamy flint]

Nah I could never😭 I'm not that smart

[knotty ibex]

it's all about the amount of effort you put in

[dreamy flint]

I might take a look at that cuz I defo need it

[knotty ibex]

if you enjoy something enough

you'll want to be the best

[dreamy flint]

True true

[knotty ibex]

and put the effort in

[knotty ibex]

oh he's amazing at teaching

[dreamy flint]

I don't enjoy maths anymore😒

[dreamy flint]

Then I gotta take a look🙏

And I think anki is now free on mobile so ima be using that app too

[knotty ibex]

why not

[knotty ibex]

oh have they finally got the ios version out

[dreamy flint]

I just needa get a bit more familiar with the app and I'll be good

[dreamy flint]

Yup, I have it downloaded rn

[knotty ibex]

you got this champ