Question
Answer
$$(-36n)(60n+18)=-2160n^2-648n$$
Explanation
| $$ \begin{aligned}(-36n)(60n+18)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-2160n^2-648n\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{-36n} $ by $ \left( 60n+18\right) $ $$ \color{blue}{-36n} \cdot \left( 60n+18\right) = -2160n^2-648n $$ |
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