Answer
$$4-4n^2-55=-4n^2-51$$
Explanation
| $$ \begin{aligned}4-4n^2-55& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-4n^2-51\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{4} -4n^2 \color{blue}{-55} = -4n^2 \color{blue}{-51} $$ |
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