(x+2)^3
(x + 2)^3 =
(x+2)(x+2)(x+2) =
(x^2 + 4x + 4) (x + 2) =
x^3 + 4x^2 + 4x
+ 2x^2 + 8x + 8
---------------------------
x^3 + 6x^2 + 12x + 8
