My desk of Integrals has the general situation ##int frac dx x^2+a^two ## as a 'regular' integral as well, not just the case the place ##a=one##. But I feel this remaining a Calculus research trouble it is anticipated from the OP to determine how to do it. Hints got over. https://gabletoppak.com/eco-friendly-packaging-solutions-for-dairy-products-in-india/