My desk of Integrals has the overall situation ##int frac dx x^2+a^two ## being a 'conventional' integral way too, not just the situation wherever ##a=1##. But I think this staying a Calculus homework problem it is anticipated on the OP to determine how to get it done. Hints got higher https://gabletoppak.com/aseptic-tetra-pak-vs-non-aseptic-gable-top-choosing-the-right-carton-for-your-needs/