Question

add and simplify:
((-1)/x)+((2/(x^2+1))+((1/(x^3+x))

Answer 1

sorry it's actually ((-1)/x)+2/(x^2+1)+1/(x^3+x)

Answer 2

is this what you mean?
\[-\frac{ 1 }{ x } +\frac{ \frac{ 2 }{ x^{2}+ 1 }+1 }{ x^{3}+x }\]