My table of Integrals has the general case ##int frac dx x^two+a^two ## as being a 'regular' integral also, not just the situation where ##a=one##. But I feel this currently being a Calculus research problem it is predicted of your OP to determine how to make it happen. Hints got https://gabletoppak.com/boost-your-brand-with-premium-white-label-water-bottles/