Question
Answer
$$8\cdot(2-5i)=-40i+16$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}8\cdot(2-5i)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}16-40i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-40i+16\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{8} $ by $ \left( 2-5i\right) $ $$ \color{blue}{8} \cdot \left( 2-5i\right) = 16-40i $$ |
| ② | Combine like terms: $$ -40i+16 = -40i+16 $$ |
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