Final Answer
Step-by-step Solution
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We could not solve this problem by using the method: Integrate by substitution
Rewrite the integrand $\left(x+8\right)\left(x-8\right)$ in expanded form
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$\int\left(x^2-64\right)dx$
Learn how to solve integral calculus problems step by step online. Find the integral int((x+8)(x-8))dx. Rewrite the integrand \left(x+8\right)\left(x-8\right) in expanded form. Expand the integral \int\left(x^2-64\right)dx into 2 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-64dx results in: -64x.