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5 votes
Realize the following operations and express the result in a+bi:


(4 + 5i)( - 4 + √( - 16) )


1 Answer

3 votes

Answer:

-4(i+9)

Explanation:

(4+5i)(-4+sqrt(-16))

(4+5i)(-4+4i)

-16-20i+16i+20i^2

-16-4i+20(-1)

-16-4i-20

-4i-16-20

-4i-36

-4(i+9)

User Adam Freymiller
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