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$\int\left(2a-b\right)^3db$
Learn how to solve problems step by step online. Integrate the function (2a-b)^3. Find the integral. Rewrite the integrand \left(2a-b\right)^3 in expanded form. Expand the integral \int\left(8a^3-12a^2b+6ab^2-b^3\right)db into 4 integrals using the sum rule for integrals, to then solve each integral separately. The integral \int8a^3db results in: 2a^{4}.