Question
Answer
$$-(-1-6i)-2i=4i+1$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}-(-1-6i)-2i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}1+6i-2i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}4i+1\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left(-1-6i \right) = 1+6i $$ |
| ② | Combine like terms: $$ 1+ \color{blue}{6i} \color{blue}{-2i} = \color{blue}{4i} +1 $$ |
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