Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 6 - Section 6.6 - Solving Quadratic Equations by Factoring - Exercise Set - Page 458: 60


The solution is -11.

Work Step by Step

$x^{2}$+22$x^{}$+121=0 $x^{2}$+11$x^{}$+11x+121=0 (x+11)+7(x+11)=0 (x+11)(x+11)=0 x+11=0 or x+11=0 x=-11 or x=-11 The solution is -11. Check Let x=-11 $x^{2}$+22$x^{}$+121=0 $(-11)^{2}$+22(-11)+121=0 121-244+121=0 0=0
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