Learn how to solve integrals of polynomial functions problems step by step online. Find the integral int((x-5)(x+3))dx. Rewrite the integrand \left(x-5\right)\left(x+3\right) in expanded form. Expand the integral \int\left(x^2-2x-15\right)dx into 3 integrals using the sum rule for integrals, to then solve each integral separately. The integral \int x^2dx results in: \frac{x^{3}}{3}. The integral \int-2xdx results in: -x^2.

Find the integral int((x-5)(x+3))dx