Algebra and Trigonometry 10th Edition

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

Chapter 3 - Review Exercises - Page 302: 70


$2$ zeros.

Work Step by Step

$x^2-2x-8=0\\(x-1)^2-1-8=0\\(x-1)^2=9\\x-1=\pm3\\x=1\pm3$. Thus the polynomial has $2$ zeros.
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