Factor by grouping: x3+2x2−4x−8x^3 + 2x^2 - 4x - 8x3+2x2−4x−8.
(x+2)(x2−4)(x + 2)(x^2 - 4)(x+2)(x2−4)
(x+2)2(x−2)(x + 2)^2(x - 2)(x+2)2(x−2)
(x−2)(x2+4)(x - 2)(x^2 + 4)(x−2)(x2+4)
(x+2)(x−2)2(x + 2)(x - 2)^2(x+2)(x−2)2