tabithacat3536
21.01.2020 •
Mathematics
Simplify the expression (-4+5/)(5+2/)
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Ответ:
D
Step-by-step explanation:
Given
(- 4 + 5i)(5 + 2i) ← expand factors using FOIL
= - 20 - 8i + 25i + 10i² ← i² = - 1
= - 20 + 17i - 10
= - 30 + 17i
Ответ:
x = 23.75