What is the extreme ((4x+7)sqrt(x+9))/(x^2+9x) ?

The extreme ((4x+7)sqrt(x+9))/(x^2+9x) is None

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extreme ((4x+7)sqrt(x+9))/(x^2+9x)

extreme points

\frac{( 4 x + 7 ) x + 9}{x ^{2} + 9 x}

None

Solution steps

f^{'} (x) = - \frac{4 x ^{2} + 21 x + 126}{2 x ^{2} ( x + 9 ) ^{\frac{3}{2}}}

Find intervals:

None

None

f (x) = e^{(x^{2} - 2 x^{2} - 7 x)}

f (x) = x^{2} - 6 x - 3

\frac{d}{d x} (3 x a t [4.16])

- x^{3} + 27 x - 55

f (x, y) = x y (1 - 10 x - y)

What is the extreme ((4x+7)sqrt(x+9))/(x^2+9x) ?
The extreme ((4x+7)sqrt(x+9))/(x^2+9x) is None