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