2 x - 10*x + 24
x^2 - 10*x + 24
(x - 4)*(x - 6)
2 24 + x - 10*x
24 + x^2 - 10*x
24.0 + x^2 - 10.0*x
24 + x*(-10 + x)
(-6 + x)*(-4 + x)