162:(x-2)^2=2
(x-2)^2=162:2
(x-2)^2=81
(x-2)^2=9^2
x-2 =9
x = 9+2
x=11
vậy x=11 :o
162:(x-2)\(^2\)=2
(x-2)\(^2\)=162:2
(x-2)\(^2\)=81
(x-2)\(^2\)=9\(^2\)
x-2=9
x = 9+2
x=11
vậy x=11