Immediately after getting the constants A and B It is rather basic to compute the integral ##int frac dx x^two + 9 ## as it may possibly now be composed as two more simple integrals. I tried but I simply cannot see how ##A,B## are constants? That is supported by https://gabletoppak.com/elevate-your-brand-with-gable-top-paks-white-label-water-packaging/