help with logarithmic

Question

how do I write in logarithmic form using (1/2)^4 - 1/16

 

I have log 16 = 2

 

 

thanks

Answer 1

Are you sure of the problem?  As this is written, log 16 = 2, means that the log base is 10, and 10^2 = 16.  I think this may be log_b16 = 2, or b² = 16.  Is this correct?