What is the critical f(x)=(4x)/(x^2+4) ?

The critical f(x)=(4x)/(x^2+4) is x=-2,x=2

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critical f(x)=(4x)/(x^2+4)

critical points

f (x) = \frac{4 x}{x ^{2} + 4}

x = - 2, x = 2

Solution steps

\frac{4 x}{x ^{2} + 4}

Find where

f^{'} (x)

is equal to zero or undefined

x = - 2, x = 2

Identify critical points not in

f (x)

domain

Domain of

\frac{4 x}{x ^{2} + 4} : - \infty < x < \infty

All critical points are in domain

x = - 2, x = 2

What is the critical f(x)=(4x)/(x^2+4) ?
The critical f(x)=(4x)/(x^2+4) is x=-2,x=2