My desk of Integrals has the general scenario ##int frac dx x^two+a^two ## as a 'normal' integral far too, not just the case in which ##a=1##. But I feel this remaining a Calculus research problem it is expected of the OP to determine how to do it. Hints got previously https://gabletoppak.com/customized-packaged-drinking-water-with-your-brand-logo/