Ответ:
\(\sqrt{50}=5\sqrt2\), \(\sqrt{18}=3\sqrt2\), \(\sqrt8=2\sqrt2\).
\(2\sqrt{50}-\sqrt{18}+\sqrt8+1=10\sqrt2-3\sqrt2+2\sqrt2+1=9\sqrt2+1\).
Ответ: \(9\sqrt2+1\).
\(\sqrt{50}=5\sqrt2\), \(\sqrt{18}=3\sqrt2\), \(\sqrt8=2\sqrt2\).
\(2\sqrt{50}-\sqrt{18}+\sqrt8+1=10\sqrt2-3\sqrt2+2\sqrt2+1=9\sqrt2+1\).
Ответ: \(9\sqrt2+1\).