Log3 x=t
t^2-4t+4=0
(t-2)^2=0
t-2=0
t=2
Log3 x=2
Log3 x=log 3 (3^2)
X=9
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Log3 x=t
t^2-4t+4=0
(t-2)^2=0
t-2=0
t=2
Log3 x=2
Log3 x=log 3 (3^2)
X=9