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02-12-2020
Mathematics

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Which expression is equivalent to 4+5i•(2-7i)?

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02-12-2020

Answer:

(4 + 5i)(2 - 7i) = 8 - 28i + 10i + 35

= 43 - 18i

4 + 5i(2 - 7i) = 4 + 10i + 35

= 39 + 10i

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