What is the integral from-2 to 0 of 9x^2(2x^3+2)^2 ?

The integral from-2 to 0 of 9x^2(2x^3+2)^2 is 1376

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integral from-2 to 0 of 9x^2(2x^3+2)^2

\int_{- 2}^{0} 9 x^{2} (2 x^{3} + 2)^{2} d x

1376

Solution steps

\int_{- 2}^{0} 9 x^{2} (2 x^{3} + 2)^{2} d x

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 9 \cdot \int_{- 2}^{0} x^{2} (2 x^{3} + 2)^{2} d x

Apply u-substitution

: \int_{- 14}^{2} \frac{u ^{2}}{6} d u

= 9 \cdot \int_{- 14}^{2} \frac{u ^{2}}{6} d u

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 9 \cdot \frac{1}{6} \cdot \int_{- 14}^{2} u^{2} d u

Apply the Power Rule

: [\frac{u ^{3}}{3}]_{- 14}^{2}

= 9 \cdot \frac{1}{6} [\frac{u ^{3}}{3}]_{- 14}^{2}

Simplify

9 \cdot \frac{1}{6} [\frac{u ^{3}}{3}]_{- 14}^{2} : \frac{3}{2} [\frac{u ^{3}}{3}]_{- 14}^{2}

= \frac{3}{2} [\frac{u ^{3}}{3}]_{- 14}^{2}

Compute the boundaries:

\frac{2752}{3}

= \frac{3}{2} \cdot \frac{2752}{3}

Simplify

= 1376

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What is the integral from-2 to 0 of 9x^2(2x^3+2)^2 ?
The integral from-2 to 0 of 9x^2(2x^3+2)^2 is 1376