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ZanzabumX [31]
2 years ago
11

5. 4i(-2 - 4i)

Mathematics
1 answer:
Wewaii [24]2 years ago
4 0

Answer:

4i( - 2 - 4i) =  - 8i + 16 \\  \\ 5i.i.( - 2i) = 10i \\  \\  (- 5 - i)(1 + i) =  -5-5i-i+1\\=-4-6i

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