What is the integral of (-300x)/((x^2+9)^{3/2)} ?

The integral of (-300x)/((x^2+9)^{3/2)} is (300)/((x^2+9)^{1/2)}+C

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integral of (-300x)/((x^2+9)^{3/2)}

\int \frac{- 300 x}{( x ^{2} + 9 ) ^{\frac{3}{2}}} d x

\frac{300}{( x ^{2} + 9 ) ^{\frac{1}{2}}} + C

Solution steps

\int \frac{- 300 x}{( x ^{2} + 9 ) ^{\frac{3}{2}}} d x

Take the constant out:

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

= - 300 \cdot \int \frac{x}{( x ^{2} + 9 ) ^{\frac{3}{2}}} d x

Apply u-substitution

: \int \frac{1}{2 u ^{\frac{3}{2}}} d u

= - 300 \cdot \int \frac{1}{2 u ^{\frac{3}{2}}} d u

Take the constant out:

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

= - 300 \cdot \frac{1}{2} \cdot \int \frac{1}{u ^{\frac{3}{2}}} d u

Apply the Power Rule

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

= - 300 \cdot \frac{1}{2} (- \frac{2}{u ^{\frac{1}{2}}})

Substitute back

u = x^{2} + 9

= - 300 \cdot \frac{1}{2} (- \frac{2}{( x ^{2} + 9 ) ^{\frac{1}{2}}})

Simplify

- 300 \cdot \frac{1}{2} (- \frac{2}{( x ^{2} + 9 ) ^{\frac{1}{2}}}) : \frac{300}{( x ^{2} + 9 ) ^{\frac{1}{2}}}

= \frac{300}{( x ^{2} + 9 ) ^{\frac{1}{2}}}

Add a constant to the solution

= \frac{300}{( x ^{2} + 9 ) ^{\frac{1}{2}}} + C

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What is the integral of (-300x)/((x^2+9)^{3/2)} ?
The integral of (-300x)/((x^2+9)^{3/2)} is (300)/((x^2+9)^{1/2)}+C