Answer
$$(-2^3)(-x-4i)=32i+8x$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}(-2^3)(-x-4i)& \xlongequal{ }-8(-x-4i) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8x+32i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}32i+8x\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{-8} $ by $ \left( -x-4i\right) $ $$ \color{blue}{-8} \cdot \left( -x-4i\right) = 8x+32i $$ |
| ② | Combine like terms: $$ 32i+8x = 32i+8x $$ |
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