2 25 x - -- - 5 x
x^2 - 25/x - 1*5
-5 + x^2 - 25/x
2 25 -5 + x - -- x
/ 2\ -25 + x*\-5 + x / ----------------- x
(-25 + x*(-5 + x^2))/x
3 -25 + x - 5*x -------------- x
(-25 + x^3 - 5*x)/x
-5.0 + x^2 - 25.0/x