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Popular Calculus >

integral from-3 to 0 of x^3-9x

Solution

\int_{- 3}^{0} x^{3} - 9 x d x

Solution

\frac{81}{4}

+1

Decimal

20.25

Solution steps

\int_{- 3}^{0} x^{3} - 9 x d x

Apply the Sum Rule:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int_{- 3}^{0} x^{3} d x - \int_{- 3}^{0} 9 x d x

\int_{- 3}^{0} x^{3} d x = - \frac{81}{4}

\int_{- 3}^{0} 9 x d x = - \frac{81}{2}

= - \frac{81}{4} - (- \frac{81}{2})

Simplify

- \frac{81}{4} - (- \frac{81}{2}) : \frac{81}{4}

= \frac{81}{4}

Graph

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Frequently Asked Questions (FAQ)

What is the integral from-3 to 0 of x^3-9x ?
The integral from-3 to 0 of x^3-9x is 81/4