Question
Answer
$$21+6i-5+11i=17i+16$$
Explanation
| $$ \begin{aligned}21+6i-5+11i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}17i+16\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{21} + \color{red}{6i} \color{blue}{-5} + \color{red}{11i} = \color{red}{17i} + \color{blue}{16} $$ |
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