Question
Answer
$$-4-4i-6+1+2i=-2i-9$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}-4-4i-6+1+2i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-4i-10+1+2i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-2i-9\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{-4} -4i \color{blue}{-6} = -4i \color{blue}{-10} $$ |
| ② | Combine like terms: $$ \color{blue}{-4i} \color{red}{-10} + \color{red}{1} + \color{blue}{2i} = \color{blue}{-2i} \color{red}{-9} $$ |
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