Question 969493
 {{{log(2,(x+3)) + log(2,(x-3)) = 4}}}
 {{{log(2,(x+3)(x-3)) = 4}}}
FOIL
  {{{log(2,(x^2-9)) = 4}}}
the exponent equiv
 {{{(x^2-9) = 2^4}}}
 x^2 - 9 = 16
 x^2 = 16 + 9
 x^2 = 25
 x = +/-{{{sqrt(25)}}}
 x = +5, the solution
and
 x = -5, will not work in the original problem (log of a neg)