Ответ:
\[\sqrt{108}=6\sqrt3,\qquad \sqrt{12}=2\sqrt3.\]
\[(6\sqrt3+2\sqrt3)\cdot4\sqrt3=8\sqrt3\cdot4\sqrt3=32\cdot3=96.\]
Ответ: 96.
\[\sqrt{108}=6\sqrt3,\qquad \sqrt{12}=2\sqrt3.\]
\[(6\sqrt3+2\sqrt3)\cdot4\sqrt3=8\sqrt3\cdot4\sqrt3=32\cdot3=96.\]
Ответ: 96.