(7 − 3i) • (2 − i) 4 i 14 3i 11 − 13i < 14 − 10i

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asked Aug 13, 2017 59.3k views

3 votes

(7 − 3i) • (2 − i) 4 i 14 3i 11 − 13i < 14 − 10i

Mathematics
high-school

Mark Volkmann asked

by Mark Volkmann

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1 Answer

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So... We distribute so that... 7 * 2 = 14 7 * i = 7i then -3i * 2 = -6i -3i * -i = 3i?
then combine like terms... 7i - 6i + 3i = 4i so 14 + 4i?

Andrii Maletskyi answered Aug 19, 2017

by Andrii Maletskyi

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