2 x - 3*x + 2 ------------ x + 4
(x^2 - 3*x + 2)/(x + 4)
-7 + x + 30/(4 + x)
30 -7 + x + ----- 4 + x
2 2 + x - 3*x ------------ 4 + x
(2 + x^2 - 3*x)/(4 + x)
(2.0 + x^2 - 3.0*x)/(4.0 + x)
2 + x*(-3 + x) -------------- 4 + x
(2 + x*(-3 + x))/(4 + x)
(-1 + x)*(-2 + x) ----------------- 4 + x
(-1 + x)*(-2 + x)/(4 + x)