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Complex Numbers Group Exercise 1

STATEMENT REASON
(3+i)(5-i)

(3+i)(5-i) = 15 + 5i - 3i - i2

15+5i-3i - i2 = 15+ 5i - 3i + 1

15+ 5i - 3i + 1 = 16 + 2i

 

Given

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