The equation is
.
Apply product property logarithm:
.

Apply Property of equality for logarithmic functions
.

Apply difference of the two squares formula:
.

Add 9 to each side.
\

Take square root each side.
\

CHECK:-
\To check the solution, substitute
in
.


Apply product property logarithm:
.

Apply Property of equality for logarithmic functions
.


The solution is true.
The solutions are
.