Respuesta :

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log(x-1)4^2=4


2.log (x-1)4=4


log (x-1)4=2


log (x-2)2^2=2


2log (x-1)2=2


log (x-1)2=1


[logab=y b=a^y]


b=2 a=x-1 y=1


2=(x-1)^1


x-1=2


x=3