ĐKXĐ: \(\left\{{}\begin{matrix}x-2>=0\\x-1>=0\end{matrix}\right.\)
=>\(\left\{{}\begin{matrix}x>=2\\x>=1\end{matrix}\right.\)
=>x>=2
\(\sqrt{49x-98}-\sqrt{9x-18}-\sqrt{16x-32}=\sqrt{4x-4}\)
=>\(7\sqrt{x-2}-3\sqrt{x-2}-4\sqrt{x-2}=\sqrt{4x-4}\)
=>\(\sqrt{4x-4}=0\)
=>4x-4=0
=>4x=4
=>x=1