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Simplify the expression inside the integral
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$\int_{1}^{4}11xdx$
Learn how to solve definite integrals problems step by step online. Integrate the function 3^2x+2x from 1 to 4. Simplify the expression inside the integral. The integral of a constant times a function is equal to the constant multiplied by the integral of the function. Applying the power rule for integration, \displaystyle\int x^n dx=\frac{x^{n+1}}{n+1}, where n represents a number or constant function, in this case n=1. Evaluate the definite integral.