Question
Answer
$$3y^2+2y+10-10y^2-7y-3=-7y^2-5y+7$$
Explanation
| $$ \begin{aligned}3y^2+2y+10-10y^2-7y-3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-7y^2-5y+7\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{3y^2} + \color{red}{2y} + \color{green}{10} \color{blue}{-10y^2} \color{red}{-7y} \color{green}{-3} = \color{blue}{-7y^2} \color{red}{-5y} + \color{green}{7} $$ |
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