Question 4818
{{{2 *log(3, (x+4))= log( 3, 9)+2}}}
{{{log( 3, ((x+4)^2)) = log( 3, 9*3^2)}}}

{{{(x+4)^2 = 9*3^2}}}
{{{(x+4)^2 = 81}}}

x+4 = 9, x+4 = -9 are two possibilities, equivalent to x=5, x=-13. Double check my answer.