Binomial theorem

[livid furnace]

I formed the equation but idk how to simplify it

[deft phoenix]

what do you obtain with the binomial theorem ?
what did you find for the coefficients x⁴ and x² ?

[livid furnace]

I did this

but im not too sure how to continue after this

[lost egret]

you know that you are looking for x^4 and x^2

only way to get that is with r=4 and r=2

[livid furnace]

yeah thats what i did

[lost egret]

you can bring the a and x terms to the same side

[livid furnace]

but how

[lost egret]

everything on both sides is just multiplied together

so you just divide both sides by $(2a)^{n-2}a^2x^2$

[brave tide]

ImOakley

[livid furnace]

oooh

i see

kk

alr i got

[livid furnace]

nC4=20(nC2)

how would i continue now

[deft phoenix]

you can use the formula of nCr

[livid furnace]

Oh yeah

Aight

k i did that

[livid furnace]

what do i do now

idk gang

[deft phoenix]

what did you have

[livid furnace]

yep i got it i got it

i simplified it into a quadratic

and i got n=-13 and n=18

so its n=18

thanks g

[deft phoenix]

ok that's correct

[deft phoenix]

!done

[urban gazelle]

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[livid furnace]

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