Question 668369
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
{{{log(3x,81) = 2}}}
   (3x)^2 = 81
     9x^2 = 81
      x^2 = 9
       x = 3   (tossing out -3 as being an extraneous solution)