2(x-1)=√64

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2(x-1)=√642(x-1)=√642(x-1)=√642(x-1)=8(x-1)=4x-1=2,x-1=-2x=3,x=-1

2(x-1)=√64
2(x-1)=√64

2(x-1)=√64
2(x-1)=8
(x-1)=4
x-1=2,x-1=-2
x=3,x=-1