2 -2 - x + 3*x ------------- / 2\ x*\2 + x /
(-2 - x^2 + 3*x)/(x*(2 + x^2))
/ 2 \ -\2 + x - 3*x/ ---------------- 3 x + 2*x
-(2 + x^2 - 3*x)/(x^3 + 2*x)
-(-1 + x)*(-2 + x) ------------------- / 2\ x*\2 + x /
-(-1 + x)*(-2 + x)/(x*(2 + x^2))
2 -2 - x + 3*x ------------- / 2\ x*\2 + x /
(-2 - x^2 + 3*x)/(x*(2 + x^2))
2 -2 - x + 3*x ------------- / 2\ x*\2 + x /
(-2 - x^2 + 3*x)/(x*(2 + x^2))