Question
Answer
$$2+5i+7+3i=8i+9$$
Explanation
| $$ \begin{aligned}2+5i+7+3i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8i+9\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2} + \color{red}{5i} + \color{blue}{7} + \color{red}{3i} = \color{red}{8i} + \color{blue}{9} $$ |
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