| $$ \begin{aligned}(-3xyz^2)^32x^3z^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-27x^3y^3z^62x^3z^2 \xlongequal{ } \\[1 em] & \xlongequal{ }-54x^6y^3z^8\end{aligned} $$ | |
| ① | $$ \left( -3xyz^2 \right)^3 = (-3)^3x^3y^3 \left( z^2 \right)^3 = -27x^3y^3z^6 $$ |