Question 1138529


{{{log(2,(x^2-9))=4}}}

{{{log((x^2-9))/log(2)=4}}}

{{{log((x^2-9))=4log(2)}}}

{{{log((x^2-9))=log(2^4)}}}

{{{log((x^2-9))=log(16)}}}........if log same, then

{{{x^2-9=16}}}

{{{x^2=16+9}}}

{{{x^2=25}}}

{{{x=sqrt(25)}}}

{{{x=5}}} or {{{x=-5}}}