Question
Answer
$$-3+9i-5-4i=5i-8$$
Explanation
| $$ \begin{aligned}-3+9i-5-4i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5i-8\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{-3} + \color{red}{9i} \color{blue}{-5} \color{red}{-4i} = \color{red}{5i} \color{blue}{-8} $$ |
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