Answer
$81$
Work Step by Step
$a^m \cdot a^n = a^{m+n}$
Use the rule above to obtain:
$=3^{x+(2-x)+2}
\\=3^{(x-x+2+2)}
\\=3^{0+4}
\\=3^4
\\=3(3)(3)(3)
\\=81$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 7 - Exponents and Exponential Functions - 7-3 Multipying Powers with the Same Base - Practice and Problem-Solving Exercises - Page 431: 65
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