Answer:
You'll times 4 by 73i and get 292i then times -2i by 73i and get -146i^2 after that you'll right 292i-146i^2.
Explanation:
-148i²+296i
(4-2i)(73i)
first you multiply 4 and 74i
4x74=296
then we multiply -2iand73i
-2ix73i=148i²
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