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Popular >

integral from-1 to 2 of 3x^2+8x

Solution

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

Solution

21

Solution steps

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

\int_{- 1}^{2} 3 x^{2} d x = 9

\int_{- 1}^{2} 8 x d x = 12

= 9 + 12

Simplify

= 21

Graph

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Frequently Asked Questions (FAQ)

What is the integral from-1 to 2 of 3x^2+8x ?
The integral from-1 to 2 of 3x^2+8x is 21