Factor completely

Question

3p^2q + 9p^2q^2 - 12p^2q^3

I have done the following:

3p^2q(1+3q-4q^)

but then i get stuck..not sure if that's the final answer..

Answer 1

edit: should be 3p^2q(1+3q-4q^2)

Answer 2

I can't factor it any further.