SOLUTION: what is the answer to (4i - 2)(5-i) where i=square root of -1

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Question 434091: what is the answer to (4i - 2)(5-i)
where i=square root of -1
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

(4i - 2)(5-i)
= 20i -4i^2 -10 +2i
= 20i + 4 -10 + 2i
= -6 + 22i