Algebra: A Combined Approach (4th Edition)

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

Chapter 6 - Review: 58

Answer

The solutions are -4 and 6.

Work Step by Step

$x^{2}$-2x-24=0 $x^{2}$+4x -6x-24=0 x(x+4)-6(x+4)=0 x+4=0 and x-6=0 x+4-4=0 -4 and x-6+6=0+6 x=-4 and x=6 The solutions are -4 and 6. Check Let x=-4 $x^{2}$-2x-24=0 $(-4)^{2}$-2(-4)-24=0 16+8-24=0 0=0 Let x=6 $x^{2}$-2x-24=0 $(6)^{2}$-2(6)-24=0 36-12-24=0 0=0
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