Question

When multiplying complex numbers (3-8i). (5+7i):​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

(3-8i) (5+7i)

3(5+7i) - 8i(5+7i)

15 + 21i - 40i -56. ( because i × i = -1)

15 - 56 + 61i

- 41 + 61i

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