What is the integral of (24x)/((3x^2+7)^3) ?

The integral of (24x)/((3x^2+7)^3) is -2/((3x^2+7)^2)+C

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integral of (24x)/((3x^2+7)^3)

\int \frac{24 x}{( 3 x ^{2} + 7 ) ^{3}} d x

- \frac{2}{( 3 x ^{2} + 7 ) ^{2}} + C

Solution steps

\int \frac{24 x}{( 3 x ^{2} + 7 ) ^{3}} d x

Take the constant out:

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

= 24 \cdot \int \frac{x}{( 3 x ^{2} + 7 ) ^{3}} d x

Apply u-substitution

: \int \frac{1}{6 u ^{3}} d u

= 24 \cdot \int \frac{1}{6 u ^{3}} d u

Take the constant out:

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

= 24 \cdot \frac{1}{6} \cdot \int \frac{1}{u ^{3}} d u

Apply the Power Rule

: - \frac{1}{2 u ^{2}}

= 24 \cdot \frac{1}{6} (- \frac{1}{2 u ^{2}})

Substitute back

u = 3 x^{2} + 7

= 24 \cdot \frac{1}{6} (- \frac{1}{2 ( 3 x ^{2} + 7 ) ^{2}})

Simplify

24 \cdot \frac{1}{6} (- \frac{1}{2 ( 3 x ^{2} + 7 ) ^{2}}) : - \frac{2}{( 3 x ^{2} + 7 ) ^{2}}

= - \frac{2}{( 3 x ^{2} + 7 ) ^{2}}

Add a constant to the solution

= - \frac{2}{( 3 x ^{2} + 7 ) ^{2}} + C

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What is the integral of (24x)/((3x^2+7)^3) ?
The integral of (24x)/((3x^2+7)^3) is -2/((3x^2+7)^2)+C