My Desk of Integrals has the general scenario ##int frac dx x^2+a^two ## as being a 'typical' integral far too, not only the case where by ##a=1##. But I do think this staying a Calculus research dilemma it is expected on the OP to determine how to make it happen. https://gabletoppak.com/sustainable-liquid-soap-packaging-why-gabletop-cartons-are-the-eco-friendly-choice/