My table of Integrals has the overall scenario ##int frac dx x^2+a^2 ## as being a 'normal' integral way too, not only the case where ##a=one##. But I feel this remaining a Calculus research difficulty it is predicted of the OP to figure out how to make it happen. Hints https://gabletoppak.com/boost-brand-visibility-with-customized-packaged-drinking-water/