how do you factor completely..

Question

18x^2+3x-3?

Answer 1

3(6x^2-x-1)
3(2x-1)(3x+1) check that.

Answer 2

(2x+1)(9x-3)

Answer 3

(2x+1)(9x-3) one more step
(2x+1)(3)(3x-1)