Question
Answer
$$5i\cdot(-2)^3=-40i$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}5i\cdot(-2)^3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5i\cdot(-8) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-40i\end{aligned} $$ | |
| ① | 5i-5i=0i |
| ② | $$ 5 i \cdot -8 = -40 i $$ |
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