My Table of Integrals has the final situation ##int frac dx x^2+a^two ## as being a 'standard' integral far too, not only the situation the place ##a=1##. But I feel this getting a Calculus research dilemma it is expected with the OP to figure out how to do it. Hints https://gabletoppak.com/sustainability-in-action-gable-top-cartons-to-save-our-oceans/