challearbeel challearbeel
  • 23-02-2018
  • Mathematics
contestada

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

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mathmate
mathmate mathmate
  • 23-02-2018
3i(4+7i)=3i*4+21i^2=12i-21  (i^2=-1)
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Janay1012
Janay1012 Janay1012
  • 23-02-2018
the answer is 3i(4)+21i

I hope this helps
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