Immediately after acquiring the constants A and B It is comparatively basic to compute the integral ##int frac dx x^2 + nine ## as it may possibly now be written as two more simple integrals. I attempted but I can not see how ##A,B## are constants? Gable roofs are basic https://gabletoppak.com/why-gable-top-cartons-are-making-a-splash-in-the-water-industry/