Question
Answer
$$10x-x^2+8+5x^2+1-22x=4x^2-12x+9$$
Explanation
| $$ \begin{aligned}10x-x^2+8+5x^2+1-22x& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4x^2-12x+9\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{10x} \color{red}{-x^2} + \color{green}{8} + \color{red}{5x^2} + \color{green}{1} \color{blue}{-22x} = \color{red}{4x^2} \color{blue}{-12x} + \color{green}{9} $$ |
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