2 5*x - 26*x + 5 --------------- 3 x - 125
(5.0 + 5.0*x^2 - 26.0*x)/(-125.0 + x^3)
5 + x*(-26 + 5*x) ----------------- 3 -125 + x
-1 + 5*x ------------- 2 25 + x + 5*x