Ответ:
- \(\sqrt{72}=\sqrt{36\cdot2}=6\sqrt2\).
- \(\sqrt{80}=\sqrt{16\cdot5}=4\sqrt5\).
- \(\sqrt{300}=\sqrt{100\cdot3}=10\sqrt3\).
- \(\sqrt{0.9}=\sqrt{0.09\cdot10}=0.3\sqrt{10}\).
- \(\frac12\sqrt{44}=\frac12\cdot2\sqrt{11}=\sqrt{11}\).
- \(-2.4\sqrt{75}=-2.4\cdot5\sqrt3=-12\sqrt3\).
- \(-100\sqrt{0.08}=-100\sqrt{0.04\cdot2}=-20\sqrt2\).
- \(\frac23\sqrt{6\frac38}=\frac23\sqrt{\frac{51}{8}}=\frac23\cdot\frac{\sqrt{102}}4=\frac{\sqrt{102}}6\).
