Determine where the given function is increasing and where it is decreasing f(x)=x^4-32x^2-5
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f'=4x^3-64x=4x(x-4)(x+4)=0

x=-4,0,4

______-_______ -4______+______0______-_______+4________+_______

INCREASING: -4;0 and 4;+

DEACRISING: -;-4 AND 0;4
by Level 8 User (35.3k points)
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