Question
Answer
$$9+3i-2-8i=-5i+7$$
Explanation
| $$ \begin{aligned}9+3i-2-8i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-5i+7\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{9} + \color{red}{3i} \color{blue}{-2} \color{red}{-8i} = \color{red}{-5i} + \color{blue}{7} $$ |
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