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Which expression is equivalent to 3i(4 + 7i)?
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Which expression is equivalent to 3i(4 + 7i)?

User Nokheat
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the answer is 3i(4)+21i

I hope this helps
User Ccellar
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3i(4+7i)=3i*4+21i^2=12i-21 (i^2=-1)
User OscarVanL
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