My desk of Integrals has the final situation ##int frac dx x^2+a^two ## for a 'typical' integral way too, not just the case where by ##a=1##. But I do think this currently being a Calculus research issue it is predicted in the OP to figure out how to make it https://gabletoppak.com/lakes-developed-under-smart-cities-initiative-in-coimbatore-turn-dumping-grounds-for-plastic-waste/