Question

Please help =*(

Answer 1

\[\frac{ x ^{36}-y ^{36} }{ (x ^{18}+y ^{18}) (x ^{9}+y ^{9}) }\]

Answer 2

a^2n - b^2n = (a^n + b^n) (a^n - b^n) try to apply this in the numerator

Answer 3

so we don't FOIL in this case?

Answer 4

just add the common values? the x's and y's?

Answer 5

?

Answer 6

FOIL method will be too long so you must try to factor the numerator and then cancel the common terms in the numerator nd denominator

x^36-y^36 = (x^18-y^18)(x^18+y^18)

Answer 7

hmmmm okay.... so tell me if this is right

Answer 8

So after splitting the numerator like this ^ can u see any terms cancelling??

Answer 9

can you do that with the denominator?

Answer 10

No

Answer 11

but why not? Since they're multiply isnt it