SOLUTION: Can I please have help on this question? My math final is coming up. (3+2i)(5-8i)

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Question 880649: Can I please have help on this question? My math final is coming up.
(3+2i)(5-8i)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%283%2B2i%29%285-8i%29


3%285-8i%29%2B2i%285-8i%29 Use the rule %28a%2Bb%29%28c%2Bd%29=a%28c%2Bd%29%2Bb%28c%2Bd%29


3%285%29%2B3%28-8i%29%2B2i%285%29%2B2i%28-8i%29


15-24i%2B10i-16i%5E2


15-24i%2B10i-16%28-1%29


15-24i%2B10i%2B16


31-14i


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So,%283%2B2i%29%285-8i%29=31-14i