Question
Answer
$$-7i-14-(-4+16i)=-23i-10$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}-7i-14-(-4+16i)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-7i-14+4-16i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-23i-10\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( -4+16i \right) = 4-16i $$ |
| ② | Combine like terms: $$ \color{blue}{-7i} \color{red}{-14} + \color{red}{4} \color{blue}{-16i} = \color{blue}{-23i} \color{red}{-10} $$ |
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