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2 years ago

14

How do I solve this ? (5+i)(4-2i)

1 answer:

denpristay [2]2 years ago

3 0

(5 + i)(4 - 2i)
20 - 10i + 4i - 2i²
20 - 6i - 2(-1)
20 - 6i + 2
20 + 2 - 6i
22 - 6i

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