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Mathematics
, 22.01.2021 19:50
hussain5889
Which expression is equivalent to (7 + 2i)(-3 - 4i)? A 13+34i
B -13 - 34i
C -29 - 34i
D 29 + 34i
Answers: 1
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Answer from:
vane9317
B -13 -34i
(7 + 2i)(-3 - 4i)
Take the 7 then times it buy the second bracket 7x(-3-4i) then take 2i from the first bracket and times it with the second bracket 2ix (-3-4i)
Then keep simplifying
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You know the right answer?
Which expression is equivalent to (7 + 2i)(-3 - 4i)? A 13+34i
B -13 - 34i
C -29 - 34i
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