Question
Answer
$$2x^3+5x^2+3x+2+3x^3+2x^2+x+1=5x^3+7x^2+4x+3$$
Explanation
| $$ \begin{aligned}2x^3+5x^2+3x+2+3x^3+2x^2+x+1& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5x^3+7x^2+4x+3\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2x^3} + \color{red}{5x^2} + \color{green}{3x} + \color{orange}{2} + \color{blue}{3x^3} + \color{red}{2x^2} + \color{green}{x} + \color{orange}{1} = \\ = \color{blue}{5x^3} + \color{red}{7x^2} + \color{green}{4x} + \color{orange}{3} $$ |
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