2logx=1+log{x+(11/10)
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2 log x = 1 + log (x + 11/10)
= Log x^2 = log 10 + log (x + 11/10)
Log x^2 = log 10 × ( 10x + 11/10 )
Log x^2 = log ( 10x + 11 )
x^2 = 10x + 11
x^2 - 10 x - 11 = 0
x^2 + 1x - 11x - 11 = 0
x (x + 1) - 11 (x + 1) = 0
( x + 1) ( x - 11 ) = 0
x + 1 = 0 or x - 11 = 0
: x = - 1 or x = 11
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