Question
Answer
$$3+4i+2+5i=9i+5$$
Explanation
| $$ \begin{aligned}3+4i+2+5i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}9i+5\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{3} + \color{red}{4i} + \color{blue}{2} + \color{red}{5i} = \color{red}{9i} + \color{blue}{5} $$ |
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