3 years ago

How do you solve 3^2x=81

Mathematics

2 answers:

Jobisdone [24]3 years ago

7 0

Answer:

x=ln(81) over 2ln(3)

Step-by-step explanation:

Using ln as its base thing instead of log and the formula usually is log over log. Plus you have to bring down the power that way.

qwelly [4]3 years ago

4 0

Answer:

x=2

Step-by-step explanation:

3^2x = 81

3^2x = 3^4

Compare powers

2x = 4

x = 2

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