Question
Answer
$$10+9i-3-2i=7i+7$$
Explanation
| $$ \begin{aligned}10+9i-3-2i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}7i+7\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{10} + \color{red}{9i} \color{blue}{-3} \color{red}{-2i} = \color{red}{7i} + \color{blue}{7} $$ |
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