2 x *(-2) + 5*x - 2
x^2*(-2) + 5*x - 2
(x - 1/2)*(x - 2)
2 -2 - 2*x + 5*x
-2 - 2*x^2 + 5*x
-2.0 + 5.0*x - 2.0*x^2
-(-1 + 2*x)*(-2 + x)
-2 + x*(5 - 2*x)