Question

What is expansion of
(a-b) ³???

Answer 1

a³ - 3a²b + 3 ab² -b³

Answer 2

${a}^{3} - {b}^{3} - 3ab(a + b) = {a}^{3} - {b}^{3} - 3 {a}^{2} b + 3a {b}^{2}$