Answer
$$\frac{3+9i}{-1-3i}=-3$$
Explanation
| $$ \begin{aligned}\frac{3+9i}{-1-3i}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-3\end{aligned} $$ | |
| ① | Divide $ \, 3+9i \, $ by $ \, -1-3i \, $ to get $\,\, -3 $. ( view steps ) |
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