Question 812531
Solve the logarithmic equation:
Log(base 2(x+3)+log(base 2(x-3))=4
{{{log(2,(x+3))+log(2,(x-3))=4}}}
{{{log(2,((x+3)(x-3)))=4}}}
{{{log(2,(x^2-9))=4}}}
2^4=x^2-9
16=x^2-9
x^2=25
x=-5 (reject)
or
x=5