Answer:
17 + 19i
Explanation:
i = √-1
(3 - 2i) (1 + 7i)
= 3(1) + 3(7i) - 1(2i) - (2X7)(i²)
= 3 + 21i - 2i - 14(√-1)²
= 3 + 19i - 14 (-1)
= 3 + 19i + 14
= 17 + 19i
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