Mathematics: Cubics?

Question

PLEASE HELP:
Cubics - what form will the equations take (factorised) if they have one root, two roots, three roots?

Any Help will be appreciated.

Thank You

Answer 1

One root: (x-a)^3 = 0
Two roots: (x-a)(x-b)^2 = 0
Three roots: (x-a)(x-b)(x-c) = 0

Answer 2

One root (x-a)^3 = 0 where a is the root

Two roots (x-a)^2(x-b) = 0 where a,b are roots

Three roots (x-a)(x-b)(x-c) = 0 where a,b,c are roots