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Popular >

derivative of (5x/(x+3))

Solution

\frac{d}{d x} (\frac{5 x}{x + 3})

Solution

\frac{15}{( x + 3 ) ^{2}}

Solution steps

\frac{d}{d x} (\frac{5 x}{x + 3})

Take the constant out:

(a \cdot f)^{'} = a \cdot f^{'}

= 5 \frac{d}{d x} (\frac{x}{x + 3})

Apply the Quotient Rule:

(\frac{f}{g})^{'} = \frac{f ^{'} \cdot g - g ^{'} \cdot f}{g ^{2}}

= 5 \cdot \frac{\frac{d x}{d x} ( x + 3 ) - \frac{d}{d x} ( x + 3 ) x}{( x + 3 ) ^{2}}

\frac{d x}{d x} = 1

\frac{d}{d x} (x + 3) = 1

= 5 \cdot \frac{1 \cdot ( x + 3 ) - 1 \cdot x}{( x + 3 ) ^{2}}

Simplify

5 \cdot \frac{1 \cdot ( x + 3 ) - 1 \cdot x}{( x + 3 ) ^{2}} : \frac{15}{( x + 3 ) ^{2}}

= \frac{15}{( x + 3 ) ^{2}}

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Frequently Asked Questions (FAQ)

What is the derivative of (5x/(x+3)) ?
The derivative of (5x/(x+3)) is (15)/((x+3)^2)
What is the first derivative of (5x/(x+3)) ?
The first derivative of (5x/(x+3)) is (15)/((x+3)^2)