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Popular Calculus >

integral from 1 to 3 of (2x^2-8)

Solution

\int_{1}^{3} (2 x^{2} - 8) d x

Solution

\frac{4}{3}

+1

Decimal

1.33333 \dots

Solution steps

\int_{1}^{3} 2 x^{2} - 8 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_{1}^{3} 2 x^{2} d x - \int_{1}^{3} 8 d x

\int_{1}^{3} 2 x^{2} d x = \frac{52}{3}

\int_{1}^{3} 8 d x = 16

= \frac{52}{3} - 16

Simplify

\frac{52}{3} - 16 : \frac{4}{3}

= \frac{4}{3}

Graph

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Frequently Asked Questions (FAQ)

What is the integral from 1 to 3 of (2x^2-8) ?
The integral from 1 to 3 of (2x^2-8) is 4/3