/ 2 \ / 2 \ (x - 1)*\x + x + 1/ - x*\x + 2/
(x - 1*1)*(x^2 + x + 1) - x*(x^2 + 2)
-1 - 2*x
1*(x + 1/2)
(-1.0 + x)*(1.0 + x + x^2) - x*(2.0 + x^2)