What is the integral from 0 to 2 of (2x-9)(8x^2+4) ?

The integral from 0 to 2 of (2x-9)(8x^2+4) is -184

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integral from 0 to 2 of (2x-9)(8x^2+4)

\int_{0}^{2} (2 x - 9) (8 x^{2} + 4) d x

- 184

Solution steps

\int_{0}^{2} (2 x - 9) (8 x^{2} + 4) d x

Expand

(2 x - 9) (8 x^{2} + 4) : 16 x^{3} + 8 x - 72 x^{2} - 36

= \int_{0}^{2} 16 x^{3} + 8 x - 72 x^{2} - 36 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}^{2} 16 x^{3} d x + \int_{0}^{2} 8 x d x - \int_{0}^{2} 72 x^{2} d x - \int_{0}^{2} 36 d x

\int_{0}^{2} 16 x^{3} d x = 64

\int_{0}^{2} 8 x d x = 16

\int_{0}^{2} 72 x^{2} d x = 192

\int_{0}^{2} 36 d x = 72

= 64 + 16 - 192 - 72

Simplify

= - 184

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What is the integral from 0 to 2 of (2x-9)(8x^2+4) ?
The integral from 0 to 2 of (2x-9)(8x^2+4) is -184