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what is the answer to 3 to the power of -1 times by 3 to the power of 5 (3 -1 X 3 5)

Guest Sep 8, 2017

rarinstraw1195 · Answer 1 · 2017-09-08T04:59:10

3^-1 * 3⁵=81

TheXSquaredFactor · Answer 2 · 2017-09-09T02:53:26

To evaluate $3^{-1}*3^5$ , you must be comfortable with exponent rules.

$3^{-1}*3^5$	Use the exponent rule that $a^b*a^c=a^{b+c}$ to simplify the expression.
$3^{-1}*3^5=3^{-1+5}=3^4$	Now, evaluate 3^4.
$3^4=\underbrace{33}\underbrace{3*3}$	To ease computation, calculate it as the following as multiplication can be done in any order.
$3^4=9*9=81$