My Table of Integrals has the final scenario ##int frac dx x^2+a^two ## as being a 'standard' integral far too, not only the situation the place ##a=1##. But I feel this getting a Calculus research difficulty it is expected with the OP to figure out how to get it done. https://gabletoppak.com/why-gabletop-cartons-outshine-pet-bottles-for-branding-opportunities/