Following getting the constants A and B It can be comparatively simple to compute the integral ##int frac dx x^2 + nine ## as it may now be written as two less difficult integrals. I tried but I are unable to see how ##A,B## are constants? This really is supported https://gabletoppak.com/aseptic-tetra-pak-vs-non-aseptic-gable-top-choosing-the-right-carton-for-your-needs/