2 years ago

(-2-2i)(-4-3i)(7+8i)

1 answer:

5 0

$(-2-2i)(-4-3i)(7+8i) \\ \\ 56 + 64i + 42i - 48 + 56i - 64 - 42 - 48i \\ \\ (56 - 48 - 64 = 42)+(64i+42i+56i-48i) \\ \\ -98 + 114i \\ \\ Answer: \fbox {-98 + 114i}$

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