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$\int\left(2a-3\right)\left(a+3\right)da$
Learn how to solve differential calculus problems step by step online. Find the integral of (2a-3)(a+3). Find the integral. Rewrite the integrand \left(2a-3\right)\left(a+3\right) in expanded form. Expand the integral \int\left(2a^2+3a-9\right)da into 3 integrals using the sum rule for integrals, to then solve each integral separately. The integral \int2a^2da results in: \frac{2}{3}a^{3}.