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