Question
Answer
$$2x^2(x^3+8x^2-7)=2x^5+16x^4-14x^2$$
Explanation
| $$ \begin{aligned}2x^2(x^3+8x^2-7)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2x^5+16x^4-14x^2\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{2x^2} $ by $ \left( x^3+8x^2-7\right) $ $$ \color{blue}{2x^2} \cdot \left( x^3+8x^2-7\right) = 2x^5+16x^4-14x^2 $$ |
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