Question
Answer
$$2+6i+9-2i=4i+11$$
Explanation
| $$ \begin{aligned}2+6i+9-2i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4i+11\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2} + \color{red}{6i} + \color{blue}{9} \color{red}{-2i} = \color{red}{4i} + \color{blue}{11} $$ |
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