Answer
$$2y{y^2}^3=2y^7$$
Explanation
| $$ \begin{aligned}2y{y^2}^3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2y\cdot1y^6 \xlongequal{ } \\[1 em] & \xlongequal{ }2y^7\end{aligned} $$ | |
| ① | $$ \left( y^2 \right)^3 = 1^3 \left( y^2 \right)^3 = y^6 $$ |
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