After discovering the constants A and B It is fairly easy to compute the integral ##int frac dx x^2 + 9 ## as it might now be created as two less difficult integrals. I attempted but I simply cannot see how ##A,B## are constants? Entrance Gable: A front gable is https://gabletoppak.com/best-alternatives-to-plastic-water-bottles-in-kerala-for-a-greener-future/