Question
Answer
$$9-6i-2+13i=7i+7$$
Explanation
| $$ \begin{aligned}9-6i-2+13i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}7i+7\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{9} \color{red}{-6i} \color{blue}{-2} + \color{red}{13i} = \color{red}{7i} + \color{blue}{7} $$ |
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