Question

Which expression is a difference of cubes?

Answer 1

It would be D

Explanation:

Got it right on Edge 2021

Answer 2

`(x-y)(x^2+xy++y^2)`

Explanation:

`Proof :\\(x-y)(x^2+xy+y^2)\\=(x^3+x^2y+y^2x-x^2y-xy^2-y^3)\\=x^3-y^3`