| $$ \begin{aligned}\frac{4\sqrt{12}}{4}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{8\sqrt{3}}{4} \xlongequal{ } \\[1 em] & \xlongequal{ }2\sqrt{3}\end{aligned} $$ | |
| ① | $$ 4 \sqrt{12} =
4 \sqrt{ 2 ^2 \cdot 3 } =
4 \sqrt{ 2 ^2 } \, \sqrt{ 3 } =
4 \cdot 2 \sqrt{ 3 } =
8 \sqrt{ 3 } $$ |