Right after finding the constants A and B it's comparatively easy to compute the integral ##int frac dx x^2 + 9 ## as it might now be created as two easier integrals. I attempted but I can not see how ##A,B## are constants? The report traces the historical past of https://gabletoppak.com/india-leads-in-generating-plastic-waste-with-10-2-mn-tonnes-a-year-study/