My table of Integrals has the general case ##int frac dx x^two+a^2 ## as a 'conventional' integral as well, not only the situation the place ##a=1##. But I think this currently being a Calculus research problem it is anticipated on the OP to figure out how to make it happen. https://gabletoppak.com/lakes-developed-under-smart-cities-initiative-in-coimbatore-turn-dumping-grounds-for-plastic-waste/