Question
Answer
$$-5+7i+i-4i=4i-5$$
Explanation
| $$ \begin{aligned}-5+7i+i-4i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4i-5\end{aligned} $$ | |
| ① | Combine like terms: $$ -5+ \color{blue}{7i} + \color{red}{i} \color{red}{-4i} = \color{red}{4i} -5 $$ |
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