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What is the value of (7 +21)(3 - i)?
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3 votes
What is the value of (7 +21)(3 - i)?

User Mike Tavish
by
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1 Answer

4 votes
(7+21)=28

28(3-I)=

28•3 =84

28•I=28i

28/84=3,5

3,5=I
User Bidisha Mukherjee
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8.1k points
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