Use a graphing utility to graph the function f(x) = -x 4 + 2x 3 + 4x

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Use a graphing utility to graph the function f(x) = -x4 + 2x3 + 4x2 - 2 on the interval (-5, 5).

Approximate any local maximum values and local minimum  values rounded to two decimal places. Determine where the function is increasing and where it is decreasing.

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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