2 2 - x *(-2 + x) + 2*x*(-2 + x) ----------------------------- 3 (-2 + x)
(-x^2*(-2 + x) + 2*x*(-2 + x)^2)/(-2 + x)^3
2.0*x/(-2.0 + x) - 0.25*x^2/(-1 + 0.5*x)^2
2.0*x/(-2.0 + x) - 0.25*x^2/(-1 + 0.5*x)^2
2 x 2*x - --------- + ------ 2 -2 + x (-2 + x)
-x^2/(-2 + x)^2 + 2*x/(-2 + x)
2 x 2*x - --------- + ------ 2 -2 + x (-2 + x)
-x^2/(-2 + x)^2 + 2*x/(-2 + x)