Algebra: A Combined Approach (4th Edition)

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

Chapter 10 - Section 10.5 - Rationalizing Numerators and Denominators of Radical Expressions - Exercise Set: 74

Answer

{$-5$}

Work Step by Step

Step 1: $9x-4=7(x-2)$ Step 2: $9x-4=7x-14$ Step 3: $9x-7x=-14+4$ Step 4: $2x=-10$ Step 5: $x=-\frac{10}{2}=-5$ Therefore, the solution set is {$-5$}.
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