Question
Answer
$$-(-8+i)+10i=9i+8$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}-(-8+i)+10i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8-i+10i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}9i+8\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left(-8+i \right) = 8-i $$ |
| ② | Combine like terms: $$ 8 \color{blue}{-i} + \color{blue}{10i} = \color{blue}{9i} +8 $$ |
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