Right After discovering the constants A and B It can be reasonably straightforward to compute the integral ##int frac dx x^2 + 9 ## as it could possibly now be composed as two easier integrals. I tried but I are unable to see how ##A,B## are constants? In distinction on https://gabletoppak.com/reducing-microplastics-why-gable-top-cartons-are-better-than-plastic-water-bottles/