Question
Answer
$$2a(5a^2+8a+8)=10a^3+16a^2+16a$$
Explanation
| $$ \begin{aligned}2a(5a^2+8a+8)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}10a^3+16a^2+16a\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{2a} $ by $ \left( 5a^2+8a+8\right) $ $$ \color{blue}{2a} \cdot \left( 5a^2+8a+8\right) = 10a^3+16a^2+16a $$ |
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