Just After obtaining the constants A and B It is rather straightforward to compute the integral ##int frac dx x^two + 9 ## as it could possibly now be composed as two more simple integrals. I tried but I are unable to see how ##A,B## are constants? Easy to use, https://gabletoppak.com/is-it-legal-to-sell-natural-mineral-water-in-gabletop-cartons-tetra-paks-and-aluminium-cans-in-india/