What is the derivative of (8-xe^x/(x+e^x)) ?

The derivative of (8-xe^x/(x+e^x)) is (-e^xx^2-e^{2x}-8e^x-8)/((x+e^x)^2)

What is the first derivative of (8-xe^x/(x+e^x)) ?

The first derivative of (8-xe^x/(x+e^x)) is (-e^xx^2-e^{2x}-8e^x-8)/((x+e^x)^2)

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Popular >

\frac{d}{d x} (\frac{8 - x e ^{x}}{x + e ^{x}})

\frac{- e ^{x} x ^{2} - e ^{2 x} - 8 e ^{x} - 8}{( x + e ^{x} ) ^{2}}

Solution steps

\frac{d}{d x} (\frac{8 - x e ^{x}}{x + e ^{x}})

Apply the Quotient Rule:

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

= \frac{\frac{d}{d x} ( 8 - x e ^{x} ) ( x + e ^{x} ) - \frac{d}{d x} ( x + e ^{x} ) ( 8 - x e ^{x} )}{( x + e ^{x} ) ^{2}}

\frac{d}{d x} (8 - x e^{x}) = - e^{x} x - e^{x}

\frac{d}{d x} (x + e^{x}) = 1 + e^{x}

= \frac{( - e ^{x} x - e ^{x} ) ( x + e ^{x} ) - ( 1 + e ^{x} ) ( 8 - x e ^{x} )}{( x + e ^{x} ) ^{2}}

Expand

(- e^{x} x - e^{x}) (x + e^{x}) - (1 + e^{x}) (8 - x e^{x}) : - e^{x} x^{2} - e^{2 x} - 8 e^{x} - 8

= \frac{- e ^{x} x ^{2} - e ^{2 x} - 8 e ^{x} - 8}{( x + e ^{x} ) ^{2}}

\int + \frac{1}{- x ^{2} + 8 x - 15} d x

(\frac{x ^{2}}{e ^{2 x}})^{6}

- 7 x + \frac{3}{x ^{6}}

\frac{d y}{d x} = e^{3 x - 2 y}

\frac{d}{d x} (f (x) - 4 x + 1)

What is the derivative of (8-xe^x/(x+e^x)) ?
The derivative of (8-xe^x/(x+e^x)) is (-e^xx^2-e^{2x}-8e^x-8)/((x+e^x)^2)
What is the first derivative of (8-xe^x/(x+e^x)) ?
The first derivative of (8-xe^x/(x+e^x)) is (-e^xx^2-e^{2x}-8e^x-8)/((x+e^x)^2)