Question
Answer
$$4-(2+17i)=-17i+2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}4-(2+17i)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4-2-17i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-17i+2\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 2+17i \right) = -2-17i $$ |
| ② | Combine like terms: $$ \color{blue}{4} \color{blue}{-2} -17i = -17i+ \color{blue}{2} $$ |
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