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