1. The problem statement, all variables and given/known data Integral (u^4 +1) du/(u^5+3u) 2. Relevant equations I don't know how to solve this integral. I don't know how to simplify it or what to do. 3. The attempt at a solution It is not a form of dt/t. I tried to substitute trig functions and got nowhere. I thought it might be able to be solved by partial fractions but no.