Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 3 - 3.4 - Zeroes of Polynomial Functions - 3.4 Exercises - Page 283: 7


Descartes's rule of signs

Work Step by Step

Look at Descartes's rule of signs on page 300. It is used to determine the number of real zeros of a polynomial function. It proves that the number of positive real zeroes of a polynomial is the same or less than the number of changes in the sign of the coefficients.
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