College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.4: Fundamental Theorem Of Algebra And Descartes' Rule Of Signs
Problem 37E
Question
Use Descartes' Rule of Signs to determine the possible numbers of positive and negative real zeros for f(x) = x4 – 4x3 + 3x2 + 2x – 1. Explain.
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