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: 23

Answer

The solutions are 0 and 7.

Work Step by Step

$x^{2}$-7x=0 x(x-7)=0 x=0 or x-7=0 x=0 or x-7+7=0+7 x=0 or x=7 The solutions are 0 and 7. Check Let x=0 $x^{2}$-7x=0 $0^{2}$ -7*0=0 0=0 0=0 Let x=7 $x^{2}$-7x=0 $7^{2}$ -7(7)=0 49-49=0 0=0
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