AP Calc summer work ?? =D?

Question

um.. so i know if i tried to solve this a few months ago i would have thought it was superr easy. but now im completely drawing a blank and cannot make it work at all.

how would you factor the following =]

(x^3-y^3)

(x^2+4xy+y^2) < can this be factored?

thanksss bunches =]

Answer 1

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

The second one can&#039;t be factored