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$\int\left(2x-1\right)\left(4x+1\right)dx$
Learn how to solve integral calculus problems step by step online. Find the integral of (2x-1)(4x+1). Find the integral. Rewrite the integrand \left(2x-1\right)\left(4x+1\right) in expanded form. Expand the integral \int\left(8x^2-2x-1\right)dx into 3 integrals using the sum rule for integrals, to then solve each integral separately. The integral \int8x^2dx results in: \frac{8}{3}x^{3}.