Question
Answer
$$(-8-9i)\cdot2=-18i-16$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}(-8-9i)\cdot2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-16-18i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-18i-16\end{aligned} $$ | |
| ① | $$ \left( \color{blue}{-8-9i}\right) \cdot 2 = -16-18i $$ |
| ② | Combine like terms: $$ -18i-16 = -18i-16 $$ |
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