# Math Help - 2 integral problems

1. ## 2 integral problems

Hi there. I'm having some trouble solving this rational integrals:

1. $\int {\frac{{dx}}
{{\ {\ (x-1)^2} {(x+1)} }}}
$

2. $\int {\frac{{4xdx}}
{{\ {\ (1+x)} {(1+x^2)^2} }}}
$

Thank you.

2. Originally Posted by GreenMile
1. $\int {\frac{{dx}}
{{\ {\ (x-1)^2} {(x+1)} }}}
$

2. $\int {\frac{{4xdx}}
{{\ {\ (1+x)} {(1+x^2)^2} }}}
$
A good place to start might be with splitting each rational integrand into simpler fractions by using partial-fraction decomposition.