what is the formula of a minus b whole cube

The formula of a minus b whole cube is:

(a−b)3=a3−3a2b+3ab2−b3(a-b)^3=a^3-3a^2b+3ab^2-b^3(a−b)3=a3−3a2b+3ab2−b3

You can also remember it as: cube of the first term, minus three times square of the first times the second, plus three times first times square of the second, minus cube of the second.