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