Question
Answer
$$43x(2x+4000)=86x^2+172000x$$
Explanation
| $$ \begin{aligned}43x(2x+4000)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}86x^2+172000x\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{43x} $ by $ \left( 2x+4000\right) $ $$ \color{blue}{43x} \cdot \left( 2x+4000\right) = 86x^2+172000x $$ |
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