What is the derivative of (14x+4x^2)/((7+4x)^2) ?

The derivative of (14x+4x^2)/((7+4x)^2) is (98)/((7+4x)^3)

What is the first derivative of (14x+4x^2)/((7+4x)^2) ?

The first derivative of (14x+4x^2)/((7+4x)^2) is (98)/((7+4x)^3)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

derivative of

\frac{14 x + 4 x ^{2}}{( 7 + 4 x ) ^{2}}

\frac{98}{( 7 + 4 x ) ^{3}}

Solution steps

\frac{d}{d x} (\frac{14 x + 4 x ^{2}}{( 7 + 4 x ) ^{2}})

Apply the Quotient Rule:

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

= \frac{\frac{d}{d x} ( 14 x + 4 x ^{2} ) ( 7 + 4 x ) ^{2} - \frac{d}{d x} ( ( 7 + 4 x ) ^{2} ) ( 14 x + 4 x ^{2} )}{( ( 7 + 4 x ) ^{2} ) ^{2}}

\frac{d}{d x} (14 x + 4 x^{2}) = 14 + 8 x

\frac{d}{d x} ((7 + 4 x)^{2}) = 8 (7 + 4 x)

= \frac{( 14 + 8 x ) ( 7 + 4 x ) ^{2} - 8 ( 7 + 4 x ) ( 14 x + 4 x ^{2} )}{( ( 7 + 4 x ) ^{2} ) ^{2}}

Simplify

\frac{( 14 + 8 x ) ( 7 + 4 x ) ^{2} - 8 ( 7 + 4 x ) ( 14 x + 4 x ^{2} )}{( ( 7 + 4 x ) ^{2} ) ^{2}} : \frac{98}{( 7 + 4 x ) ^{3}}

= \frac{98}{( 7 + 4 x ) ^{3}}

What is the derivative of (14x+4x^2)/((7+4x)^2) ?
The derivative of (14x+4x^2)/((7+4x)^2) is (98)/((7+4x)^3)
What is the first derivative of (14x+4x^2)/((7+4x)^2) ?
The first derivative of (14x+4x^2)/((7+4x)^2) is (98)/((7+4x)^3)