đk : x khác 2
\(\Leftrightarrow\left(x-2\right)^2=100\)
\(\left[{}\begin{matrix}x-2=10\\x-2=-10\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=12\\x=-8\end{matrix}\right.\left(tm\right)\)
\(\dfrac{x-2}{50}=\dfrac{2}{x-2}\)
\(\Rightarrow\left(x-2\right).x-2=2.50\)
\(\Rightarrow\left(x-2\right).x-2=100\)
\(Ta\) có 10^2 thì bằng 100
Vậy x=10