Right after finding the constants A and B It is really reasonably uncomplicated to compute the integral ##int frac dx x^two + nine ## as it may now be written as two simpler integrals. I tried but I are not able to see how ##A,B## are constants? While the notion https://gabletoppak.com/reducing-microplastics-why-gable-top-cartons-are-better-than-plastic-water-bottles/