Question
Answer
$$-17c^8-4c^8=-21c^8$$
Explanation
| $$ \begin{aligned}-17c^8-4c^8& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-21c^8\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{-17c^8} \color{blue}{-4c^8} = \color{blue}{-21c^8} $$ |
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