\[\boxed{\mathbf{760\ (760).\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ \left( 2\sqrt{6} - 2\sqrt{54} + 6\sqrt{96} \right) \cdot 2\sqrt{3} =\]
\[= \left( 2\sqrt{6} - 2\sqrt{9} \cdot \sqrt{6} + 6 \cdot \sqrt{16} \cdot \sqrt{6} \right) \cdot 2\sqrt{3} =\]
\[= \left( 2\sqrt{6} - 6\sqrt{6} + 24\sqrt{6} \right) \cdot 2\sqrt{3} =\]
\[= 20\sqrt{6} \cdot 2\sqrt{3} = 40\sqrt{18} =\]
\[= 40\sqrt{9} \cdot \sqrt{2} = 120\sqrt{2}\]
\[Ответ:120\sqrt{2}.\]
\[2)\ \left( 5\sqrt{20} - 6\sqrt{10} + 2\sqrt{40} \right) \cdot\]
\[\cdot 3\sqrt{5} =\]
\[= \left( 5\sqrt{4} \cdot \sqrt{5} - 6\sqrt{5} \cdot \sqrt{2} + 2\sqrt{2} \cdot \sqrt{5} \cdot \sqrt{4} \right) \cdot 3\sqrt{5} =\]
\[= \left( 10\sqrt{5} - 6\sqrt{10} + 4\sqrt{10} \right) \cdot\]
\[\cdot 3\sqrt{5} = \left( 10\sqrt{5} - 2\sqrt{10} \right) \cdot 3\sqrt{5} =\]
\[= 30\sqrt{5} \cdot \sqrt{5} - 6\sqrt{10} \cdot \sqrt{5} = 30 \cdot\]
\[\cdot 5 - 6\sqrt{5} \cdot \sqrt{2} \cdot \sqrt{5} =\]
\[= 150 - 6 \cdot 5\sqrt{2} =\]
\[= 150 - 30\sqrt{2}\]
\[Ответ:150 - 30\sqrt{2}.\]