Factor: x3+3x2−x−3x^3 + 3x^2 - x - 3x3+3x2−x−3 completely.
(x+3)(x+1)(x−1)(x+3)(x+1)(x-1)(x+3)(x+1)(x−1)
(x−1)(x+1)(x−3)(x-1)(x+1)(x-3)(x−1)(x+1)(x−3)
(x+3)(x2−1)(x+3)(x^2-1)(x+3)(x2−1) only
(x+1)2(x−3)(x+1)^2(x-3)(x+1)2(x−3)