Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 9 - Quadratic Functions and Equations - 9-3 Solving Quadratic Equations - Practice and Problem-Solving Exercises: 38

Answer

two

Work Step by Step

$c^{2}-18=9$ $c^{2}=27$ Now you can take the square root and you will get a positive and negative number as the answers. Both of them are solutions.
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