I will try my best to assist you with your question.
We can to write
2^2 =4
In log form
To convert exponential equation to log equation, we have to use the following rule If \ a^b = c, \ then \ b=log_{a} c
So we will get
If \ 2^2 =4, \ then \ 2 = log_{2} 4
or
log_{2}4=2
Hope I helped!
Good Luck!
⛈