2. Вычислите: \((\sqrt{72}-\sqrt{8})\cdot 4\sqrt{2}\).

\(\sqrt{72}=6\sqrt{2}\), а \(\sqrt{8}=2\sqrt{2}\).

\((6\sqrt{2}-2\sqrt{2})\cdot4\sqrt{2}=4\sqrt{2}\cdot4\sqrt{2}=16\cdot2=32\).

Ответ: 32.