Question
Answer
$$9x+6-3x^2-9x-7=-3x^2-1$$
Explanation
| $$ \begin{aligned}9x+6-3x^2-9x-7& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-3x^2-1\end{aligned} $$ | |
| ① | Combine like terms: $$ \, \color{blue}{ \cancel{9x}} \,+ \color{green}{6} -3x^2 \, \color{blue}{ -\cancel{9x}} \, \color{green}{-7} = -3x^2 \color{green}{-1} $$ |
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