My table of Integrals has the final scenario ##int frac dx x^2+a^two ## like a 'regular' integral too, not simply the case where by ##a=1##. But I do think this currently being a Calculus homework challenge it is anticipated of the OP to figure out how to make it happen. https://gabletoppak.com/free-water-advertising-a-sustainable-and-emotional-path-to-powerful-brand-recognition/