Question

(X-3)^3

Answer 1

(x^2-6x+9)(x-3)=x^3-6x^2+9x-3x^2+18x-27=x^3-9x^2+27x-27

Answer 2

How did you get that ? That looks like a long Anwser

Answer 3

(a-b)^2=(a-b)(a-b)=a^2-ab-ba+b^2, basically u just multiply terms one by one.
Same here, (a^2-ab-ba+b^2)(a-b), multiply terms one by one.