| $$ \begin{aligned}\sqrt{6}\cdot(3+4\sqrt{2})& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}3\sqrt{6}+8\sqrt{3}\end{aligned} $$ | |
| ① | $$ \color{blue}{ \sqrt{6} } \cdot \left( 3 + 4 \sqrt{2}\right) = \color{blue}{ \sqrt{6}} \cdot3+\color{blue}{ \sqrt{6}} \cdot 4 \sqrt{2} = \\ = 3 \sqrt{6} + 8 \sqrt{3} $$ |