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Evaluate the integral.

intx^(2)(3x-4)(x-3)dx
Answer:

Evaluate the integral.\newlinex2(3x4)(x3)dx \int x^{2}(3 x-4)(x-3) \mathrm{d} x \newlineAnswer:

Full solution

Q. Evaluate the integral.\newlinex2(3x4)(x3)dx \int x^{2}(3 x-4)(x-3) \mathrm{d} x \newlineAnswer:
  1. Expand Integrand: Expand the integrand x2(3x4)(x3)x^2(3x-4)(x-3) to simplify the integral.\newlineWe have the integral of a product of a quadratic and a linear term. We will first expand this product before integrating term by term.\newlinex2(3x4)(x3)=x2(3x29x4x+12)=x2(3x213x+12)x^2(3x-4)(x-3) = x^2(3x^2 - 9x - 4x + 12) = x^2(3x^2 - 13x + 12)\newline=3x413x3+12x2= 3x^4 - 13x^3 + 12x^2\newlineNow we can integrate each term separately.
  2. Integrate Expanded Polynomial: Integrate each term of the expanded polynomial separately.\newlineThe integral of 3x43x^4 with respect to xx is (35)x5(\frac{3}{5})x^5, the integral of 13x3-13x^3 with respect to xx is (134)x4(-\frac{13}{4})x^4, and the integral of 12x212x^2 with respect to xx is (123)x3(\frac{12}{3})x^3 or 4x34x^3.\newlineSo, xx00, where xx11 is the constant of integration.

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