Just after finding the constants A and B It really is rather very simple to compute the integral ##int frac dx x^2 + 9 ## as it can now be published as two less complicated integrals. I attempted but I are not able to see how ##A,B## are constants? Impact https://gabletoppak.com/choosing-between-gable-top-packaging-and-plastic-bottles-for-your-beverage-business/