Question 631416
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
Note: *[tex \LARGE \ \ \ y = \log_b(x) \ \ \Rightarrow\ \ b^y = x]
1/2 log(x)-log(10000)= 4
{{{(1/2) log(x)- highlight(4) = 4}}}     ||  {{{10^4 = 10000}}}
log(x)-8 = 8  |Multiplying thru by 2 so as all denominators = 1        
 log(x) = 16
  {{{ x = 10^16}}}