Algebra 1

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

Chapter 8 - Polynomials and Factoring - 8-6 Factoring ax(squared) + bx + c - Standardized Test Prep: 54

Answer

13

Work Step by Step

For solving I x+4 I = 9 we consider a positive and negative answer. x+4 = 9 x=5 -(x+4) = 9 x=-13 The negative answer is -13 and thus the absolute value of -13 is 13. I -13 I = 13
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