Question: A rational function f ( x ) and its first derivative are given below: f ( x ) = - 4 x 2 - 1

A rational function f(x) and its first derivative are given below:
f(x)=-4x2-16,f'(x)=8x(x-4)2(x+4)2
Find all critical points of f(x); list all local extreme points.
A rational function f ( x ) and its first

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