Just after discovering the constants A and B It is really fairly very simple to compute the integral ##int frac dx x^two + nine ## as it might now be composed as two less difficult integrals. I attempted but I simply cannot see how ##A,B## are constants? Gable roofs are https://gabletoppak.com/india-leads-in-generating-plastic-waste-with-10-2-mn-tonnes-a-year-study/