How do you simplify (x - 3)³?

(x-3)3 can be solved using the identity

(a – b)³ = a³ – b³ – 3ab(a – b)

(x-3)³= x3 – y3 – 3x.3 (x-3)

(x-3)³= x³ – y³ – 9x (x-3)