9^4x=81? I need to solve this math problem nd idk how to

asked May 27, 2016 206k views

4 votes

by Alden

7.9k points

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3 votes

$9^(4x)=81\\ 9^(4x)=9^2\\ 4x=2\\ x=(2)/(4)=(1)/(2)$

Myrlene answered May 28, 2016

8.2k points

5 votes

$9^(4x)=81\\ 9^(4x)=9^2\\ =\ \textgreater \ 4x=2\\ x=(2)/(4)^(/2)=(1)/(2)$

Victorhooi answered May 31, 2016

7.8k points

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