Question

answer this question...

Answer 1

Given,
log (x-1)+log(x+1)=logbase 2 1
or, log (x-1)+log (x+1) = 0
or, log (x-1)(x+1)=0
or,(x-1)(x+1) = e^0
or x^2-1=1
or x^2= 2
$or \: \: \: \: x = \sqrt{2}$
or x= 1.41