Just after finding the constants A and B It is reasonably easy to compute the integral ##int frac dx x^two + 9 ## as it could now be composed as two easier integrals. I attempted but I simply cannot see how ##A,B## are constants? Photon 'time bins' and sign stability https://gabletoppak.com/what-makes-gabletop-pak-cartons-a-better-choice-than-plastic-bottles/