Solve ∫ x^2/x^4-x^2-x wrt x

$$\int{ \frac{ { x }^{ 2 } }{ { x }^{ 4 } - { x }^{ 2 } -x } }d x$$

Evaluate

$$\frac{\ln(\frac{|x-1|}{|x+1|})x^{5}-2\ln(\frac{|x-1|}{|x+1|})x^{3}-\ln(\frac{|x-1|}{|x+1|})x^{2}+\ln(\frac{|x-1|}{|x+1|})x+x+\ln(\frac{|x-1|}{|x+1|})}{2\left(x^{5}-2x^{3}-x^{2}+x+1\right)}+С$$

Differentiate w.r.t. x

$$\frac{sign(x-1)x^{10}-|x-1|x^{9}+|x-1|x^{8}-4sign(x-1)x^{8}-|x-1|x^{6}+3|x-1|x^{7}-2sign(x-1)x^{7}+6sign(x-1)x^{6}-|x-1|x^{4}+6sign(x-1)x^{5}-9|x-1|x^{5}-3sign(x-1)x^{4}-sign(x-1)x^{2}+8|x-1|x^{3}-6sign(x-1)x^{3}+3|x-1|x^{2}-x|x-1|+2xsign(x-1)+sign(x-1)}{2|x-1|\left(\left(x^{2}-1\right)\left(x^{3}-x-1\right)\right)^{2}}$$