Question
Answer
$$7+4i+12+i=5i+19$$
Explanation
| $$ \begin{aligned}7+4i+12+i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5i+19\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{7} + \color{red}{4i} + \color{blue}{12} + \color{red}{i} = \color{red}{5i} + \color{blue}{19} $$ |
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