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$\int3xdx+27\int\frac{x}{x^2-9}dx$
Learn how to solve integrals of polynomial functions problems step by step online. Integrate int(3x+(27x)/(x^2-9))dx. Simplify the expression inside the integral. The integral \int3xdx results in: \frac{3}{2}x^2. The integral 27\int\frac{x}{x^2-9}dx results in: \frac{27}{2}\ln\left(x+3\right)+\frac{27}{2}\ln\left(x-3\right). Gather the results of all integrals.