Question
Answer
$$2+i+4+i+2i-3=4i+3$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}2+i+4+i+2i-3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2i+6+2i-3 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}4i+3\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2} + \color{red}{i} + \color{blue}{4} + \color{red}{i} = \color{red}{2i} + \color{blue}{6} $$ |
| ② | Combine like terms: $$ \color{blue}{2i} + \color{red}{6} + \color{blue}{2i} \color{red}{-3} = \color{blue}{4i} + \color{red}{3} $$ |
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