3 2 x - 3*x - 4*x + 12
x^3 - 3*x^2 - 4*x + 12
1*(x + 2)*(x - 2)*(x - 3)
((1*(x + 2))*(x - 2))*(x - 3)
12.0 + x^3 - 4.0*x - 3.0*x^2
(-3 + x)*(-2 + x)*(2 + x)