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$\int\frac{x^2-81}{x+9}dx$
Learn how to solve integral calculus problems step by step online. Find the integral of (x^2-81)/(x+9). Find the integral. Simplify the expression inside the integral. The integral \int xdx results in: \frac{1}{2}x^2. The integral \int-9dx results in: -9x.