Answer
$$2-8i+5-i=-9i+7$$
Explanation
| $$ \begin{aligned}2-8i+5-i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-9i+7\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2} \color{red}{-8i} + \color{blue}{5} \color{red}{-i} = \color{red}{-9i} + \color{blue}{7} $$ |
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