Question
Answer
$$7x^3(4x^3-3x+5)=28x^6-21x^4+35x^3$$
Explanation
| $$ \begin{aligned}7x^3(4x^3-3x+5)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}28x^6-21x^4+35x^3\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{7x^3} $ by $ \left( 4x^3-3x+5\right) $ $$ \color{blue}{7x^3} \cdot \left( 4x^3-3x+5\right) = 28x^6-21x^4+35x^3 $$ |
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