What is the integral from 0 to 3 of 5x-x^2-2x ?

The integral from 0 to 3 of 5x-x^2-2x is 9/2

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integral from 0 to 3 of 5x-x^2-2x

\int_{0}^{3} 5 x - x^{2} - 2 x d x

\frac{9}{2}

Decimal Notation

4.5

Solution steps

\int_{0}^{3} 5 x - x^{2} - 2 x d x

Simplify

= \int_{0}^{3} - x^{2} + 3 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_{0}^{3} x^{2} d x + \int_{0}^{3} 3 x d x

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

\int_{0}^{3} 3 x d x = \frac{27}{2}

= - 9 + \frac{27}{2}

Simplify

- 9 + \frac{27}{2} : \frac{9}{2}

= \frac{9}{2}

\frac{1}{9 x ^{\frac{8}{9}}}

\int x csc (4) x^{2} d x

\frac{d}{d x} (\frac{1}{2} cos^{2} (5 x))

f (x) = x^{3}

\int_{- 2}^{1} (x^{3} + 5) d x

What is the integral from 0 to 3 of 5x-x^2-2x ?
The integral from 0 to 3 of 5x-x^2-2x is 9/2