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cheyennerondeau
29.09.2019 •
Mathematics
Multiply and simplify the product.
(8 – 5i)2
select the product.
a. 39
b. 89
c. 39-80i
d. 89-80i
Solved
Show answers
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Ответ:
Solving the equation (8 – 5i)² is done below:
Rewriting (8 – 5i)²:
(8 - 5i)(8 - 5i) = 64 - 40i - 40i + 25i²
Simplifying and applying i² = -1:
64 - 80i + 25(-1)
64 - 80i - 25
39 - 80i
From the choices, the answer is C.
Ответ:
The value of x would be 8.
Step-by-step explanation: