Ответ:

  1. а) \(\sqrt{75}+\sqrt{48}-\sqrt{300}=5\sqrt3+4\sqrt3-10\sqrt3=-\sqrt3\).
  2. б) \(3\sqrt8-\sqrt{50}+2\sqrt{18}=6\sqrt2-5\sqrt2+6\sqrt2=7\sqrt2\).
  3. в) \(\sqrt{242}-\sqrt{200}+\sqrt8=11\sqrt2-10\sqrt2+2\sqrt2=3\sqrt2\).
  4. г) \(\sqrt{75}-0{,}1\sqrt{300}-\sqrt{27}=5\sqrt3-\sqrt3-3\sqrt3=\sqrt3\).
  5. д) \(\sqrt{98}-\sqrt{72}+0{,}5\sqrt8=7\sqrt2-6\sqrt2+\sqrt2=2\sqrt2\).