Just after acquiring the constants A and B It is rather straightforward to compute the integral ##int frac dx x^2 + nine ## as it could now be written as two simpler integrals. I attempted but I are not able to see how ##A,B## are constants? Readily available in a https://gabletoppak.com/why-gable-top-cartons-are-making-a-splash-in-the-water-industry/