Fix the mistake, post your answer.
f(x)=2(x-3)(x+2)^2 + 2(x+2)(x-3)^3
=2ab^2 + 2ba^3 = 2ab(b+a^2)
Factorise f(x) completely
oops, sorry for the reply. Not noticed that I had changed the squared to cube, now I rectified.
Is it correct now ?