2 x - 4*x + 3 ------------ x + 2
(x^2 - 4*x + 3)/(x + 2)
2 3 + x - 4*x ------------ 2 + x
(3 + x^2 - 4*x)/(2 + x)
-6 + x + 15/(2 + x)
15 -6 + x + ----- 2 + x
(3.0 + x^2 - 4.0*x)/(2.0 + x)
(-1 + x)*(-3 + x) ----------------- 2 + x
(-1 + x)*(-3 + x)/(2 + x)
3 + x*(-4 + x) -------------- 2 + x
(3 + x*(-4 + x))/(2 + x)