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Popular Calculus >

integral from 0 to 3 of x^2+3x

Solution

\int_{0}^{3} x^{2} + 3 x d x

Solution

\frac{45}{2}

+1

Decimal

22.5

Solution steps

\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{45}{2}

= \frac{45}{2}

Graph

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Frequently Asked Questions (FAQ)

What is the integral from 0 to 3 of x^2+3x ?
The integral from 0 to 3 of x^2+3x is 45/2