Question
Answer
$$6x^3+7x-x^4+4x^3+4+5x^4=4x^4+10x^3+7x+4$$
Explanation
| $$ \begin{aligned}6x^3+7x-x^4+4x^3+4+5x^4& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4x^4+10x^3+7x+4\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{6x^3} +7x \color{red}{-x^4} + \color{blue}{4x^3} +4+ \color{red}{5x^4} = \color{red}{4x^4} + \color{blue}{10x^3} +7x+4 $$ |
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