2 3*x - 108
3*x^2 - 1*108
1*(x + 6)*(x - 6)
(1*(x + 6))*(x - 6)
-108.0 + 3.0*x^2
3*(-6 + x)*(6 + x)
/ 2\ 3*\-36 + x /
3*(-36 + x^2)