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OpenStudy (anonymous):
please help?! simplify the expression. (-2i)(8i)
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OpenStudy (solomonzelman):
\[(-2i)(8i)=(-2) \times 8 \times i \times i=(-16) \times i^2= (-16) \times (-1)=16\]
OpenStudy (anonymous):
i^2 = -1
OpenStudy (anonymous):
wow... I really always overthink these problems. I had a feeling that was all I had to do. thank you, I will remember to simplify this way.
OpenStudy (anonymous):
yea man it's easier than you think bro
OpenStudy (anonymous):
looks like it! thanks guys
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