Just after getting the constants A and B It can be relatively uncomplicated to compute the integral ##int frac dx x^2 + 9 ## as it could possibly now be published as two simpler integrals. I tried but I cannot see how ##A,B## are constants? Simple to operate, it includes https://gabletoppak.com/beyond-beverages-gable-top-cartons-the-versatile-customized-packaging-solution/