What is the integral from-2 to 0 of 9x^2(2x^3+5)^2 ?

The integral from-2 to 0 of 9x^2(2x^3+5)^2 is 728

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integral from-2 to 0 of 9x^2(2x^3+5)^2

\int_{- 2}^{0} 9 x^{2} (2 x^{3} + 5)^{2} d x

728

Solution steps

\int_{- 2}^{0} 9 x^{2} (2 x^{3} + 5)^{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} + 5)^{2} d x

Apply u-substitution

= 9 \cdot \int_{- 11}^{5} \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_{- 11}^{5} u^{2} d u

Apply the Power Rule

= 9 \cdot \frac{1}{6} [\frac{u ^{3}}{3}]_{- 11}^{5}

Simplify

9 \cdot \frac{1}{6} [\frac{u ^{3}}{3}]_{- 11}^{5} : \frac{3}{2} [\frac{u ^{3}}{3}]_{- 11}^{5}

= \frac{3}{2} [\frac{u ^{3}}{3}]_{- 11}^{5}

Compute the boundaries:

\frac{1456}{3}

= \frac{3}{2} \cdot \frac{1456}{3}

Simplify

= 728

What is the integral from-2 to 0 of 9x^2(2x^3+5)^2 ?
The integral from-2 to 0 of 9x^2(2x^3+5)^2 is 728