| $$ \begin{aligned}(4x^2y^3)^4& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}256x^8y^{12}\end{aligned} $$ | |
| ① | $$ \left( 4x^2y^3 \right)^4 = 4^4 \left( x^2 \right)^4 \left( y^3 \right)^4 = 256x^8y^{12} $$ |