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Step-by-step Solution
How should I solve this problem?
- Integrate by parts
- Integrate by partial fractions
- Integrate by substitution
- Integrate using tabular integration
- Integrate by trigonometric substitution
- Weierstrass Substitution
- Integrate using trigonometric identities
- Integrate using basic integrals
- Product of Binomials with Common Term
- FOIL Method
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$\int\left(x+5\right)\left(x-4\right)dx$
Learn how to solve problems step by step online. Integrate the function (x+5)(x-4). Find the integral. Rewrite the integrand \left(x+5\right)\left(x-4\right) in expanded form. Expand the integral \int\left(x^2+x-20\right)dx into 3 integrals using the sum rule for integrals, to then solve each integral separately. The integral \int x^2dx results in: \frac{x^{3}}{3}.