| $$ \begin{aligned}(2a^2b^3)^3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8a^6b^9\end{aligned} $$ | |
| ① | $$ \left( 2a^2b^3 \right)^3 = 2^3 \left( a^2 \right)^3 \left( b^3 \right)^3 = 8a^6b^9 $$ |