Ответ:

Применяем свойство \(\frac{\sqrt[n]{a}}{\sqrt[n]{b}}=\sqrt[n]{\frac{a}{b}}\).

  1. \(\sqrt[4]{324}:\sqrt[4]{4}=\sqrt[4]{\frac{324}{4}}=\sqrt[4]{81}=3\).
  2. \(\sqrt[3]{128}:\sqrt[3]{2000}=\sqrt[3]{\frac{128}{2000}}=\sqrt[3]{\frac{8}{125}}=\frac{2}{5}\).
  3. \(\frac{\sqrt[3]{16}}{\sqrt[3]{2}}=\sqrt[3]{\frac{16}{2}}=\sqrt[3]{8}=2\).
  4. \(\frac{\sqrt[5]{256}}{\sqrt[5]{8}}=\sqrt[5]{\frac{256}{8}}=\sqrt[5]{32}=2\).
  5. \((\sqrt{20}-\sqrt{45}):\sqrt{5}=\frac{2\sqrt{5}-3\sqrt{5}}{\sqrt{5}}=\frac{-\sqrt{5}}{\sqrt{5}}=-1\).
  6. \((\sqrt[3]{625}-\sqrt[3]{5}):\sqrt[3]{5}=\frac{5\sqrt[3]{5}-\sqrt[3]{5}}{\sqrt[3]{5}}=4\).

Ответ: 1) 3; 2) \(\frac{2}{5}\); 3) 2; 4) 2; 5) −1; 6) 4.