Answer
$$7x(-8x-2)=-56x^2-14x$$
Explanation
| $$ \begin{aligned}7x(-8x-2)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-56x^2-14x\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{7x} $ by $ \left( -8x-2\right) $ $$ \color{blue}{7x} \cdot \left( -8x-2\right) = -56x^2-14x $$ |
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