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