Algebra 1

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

Chapter 7 - Exponents and Exponential Functions - 7-4 More Multiplication Properties of Exponents - Practice and Problem-Solving Exercises - Page 438: 72



Work Step by Step

Make both sides have a base of 3 by writing $27$ as $3^3$ to obtain: $3^x=(3^3)^4 \\3^x=3^{3\cdot 4} \\3^x=3^{12}$ Use the rule "If $a^x=a^y$, then $x=y$" to obtain: $x=12$
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