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Expand the integral $\int_{-1}^{1}\left(3x^2+x+1\right)dx$ into $3$ integrals using the sum rule for integrals, to then solve each integral separately
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$\int_{-1}^{1}3x^2dx+\int_{-1}^{1} xdx+\int_{-1}^{1}1dx$
Learn how to solve definite integrals problems step by step online. Integrate the function 3x^2+x+1 from -1 to 1. Expand the integral \int_{-1}^{1}\left(3x^2+x+1\right)dx into 3 integrals using the sum rule for integrals, to then solve each integral separately. The integral \int_{-1}^{1}3x^2dx results in: 2. The integral \int_{-1}^{1} xdx results in: 0. The integral \int_{-1}^{1}1dx results in: 2.