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