I need to verify the answer of a logarithm expression (note, I'm not a student). I managed to get through high school and college without ever having a math course that taught logarithms--I don't know how.
The expression that I need to simplify is:
The answer that was given was 3 but I have not been able to establish that this is correct despite finding plenty of information about logarithm rules and properties. It seems like the following property is applicable:
$\log_b(x) = \log_c(x) /\log_c(b)$
but I can only see that I would get me to $\log_9(x^2)$.
Can someone help me with this? Thank you.