Ответ:
\[\begin{aligned}(\sqrt6+\sqrt3)\sqrt{12}-2\sqrt6\cdot\sqrt3&=2\sqrt{18}+2\sqrt9-2\sqrt{18}\\&=6.\end{aligned}\]
Ответ: 6.
\[\begin{aligned}(\sqrt6+\sqrt3)\sqrt{12}-2\sqrt6\cdot\sqrt3&=2\sqrt{18}+2\sqrt9-2\sqrt{18}\\&=6.\end{aligned}\]
Ответ: 6.