Factor completely: a3−a2b−ab2+b3a^3 - a^2b - ab^2 + b^3a3−a2b−ab2+b3.
(a−b)2(a+b)(a-b)^2(a+b)(a−b)2(a+b)
(a+b)2(a−b)(a+b)^2(a-b)(a+b)2(a−b)
(a2+b2)(a−b)(a^2+b^2)(a-b)(a2+b2)(a−b)
(a−b)3(a-b)^3(a−b)3