Factor: 18x^2-33x+9

Answer 1

Use the quadratic formula
and that will give you the answer

Answer 2

or, note that you have

3(6x^2-11x+3)

that will factor into

(6x-?)(x-?) or (3x-?)(2x-?)
where the two ? are either 1 or 3

a little thought will provide the answer:

3(3x-1)(2x-3)