Question

could someone verify two calculation for me.

1) expand completetely (including simplifications) (x^2 + 2y^2)^3

i got as my answer
x^6+6x^4y^2+12x^2y^4+8y^6


and for my other question
in the expansion of (x-2y)^15. find the term containing x^10

i got as my answer -32x^10y^5

Answer 1

what kind of work is this?

Answer 2

like what is the lesson called

Answer 3

binomial expressions

Answer 4

ok hold on

Answer 5

both correct:)

Answer 6

thank you.

Answer 7

can I say something?

Answer 8

by all means

Answer 9

(a + b)^15 has expansion like