Question
Answer
$$7+2i+1-4i=-2i+8$$
Explanation
| $$ \begin{aligned}7+2i+1-4i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-2i+8\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{7} + \color{red}{2i} + \color{blue}{1} \color{red}{-4i} = \color{red}{-2i} + \color{blue}{8} $$ |
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