What does Descartes' rule of signs tell you about the number of positive real zeros and the

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What does Descartes' rule of signs tell you about the number of positive real zeros and the number of negative real zeros of the function?
1. f(x) = 3x5 - 2x2 + x - 1
2. g(x) = 5x6 - 3x3 + x2 - x
3. h(x) = 6x7 + 2x2 + 5x + 4

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College Algebra Graphs and Models

ISBN: 978-0321845405

5th edition

Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna

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Question Posted: Apr 12, 2016 09:38 AM

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What does Descartes' rule of signs tell you about the number of positive real zeros and the

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1 fx 3x 5 2x 2 x 1 The number of variations in sign in fx is 3 Then the number of pos...View the full answer

College Algebra Graphs and Models

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