Expand: (a−b)3(a - b)^3(a−b)3.
a3−3a2b+3ab2−b3a^3 - 3a^2b + 3ab^2 - b^3a3−3a2b+3ab2−b3
a3−b3a^3 - b^3a3−b3
a3+3a2b−3ab2+b3a^3 + 3a^2b - 3ab^2 + b^3a3+3a2b−3ab2+b3
a3−3ab+b3a^3 - 3ab + b^3a3−3ab+b3