Question
Answer
$$2x^3+4x^2-13x+4+3x^2+16x-x^3=x^3+7x^2+3x+4$$
Explanation
| $$ \begin{aligned}2x^3+4x^2-13x+4+3x^2+16x-x^3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x^3+7x^2+3x+4\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2x^3} + \color{red}{4x^2} \color{green}{-13x} +4+ \color{red}{3x^2} + \color{green}{16x} \color{blue}{-x^3} = \color{blue}{x^3} + \color{red}{7x^2} + \color{green}{3x} +4 $$ |
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