Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 2 - Real Numbers - 2.4 - Exponents - Problem Set 2.4 - Page 75: 41


$= 9x^{2}$

Work Step by Step

Recall the following rule: $x^{a}x^{b}=x^{a+b}$ Thus, we obtain: $9 \times x \times x$ $= 9 \times x^{1+1}$ $= 9x^{2}$
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