Answer:
3i-2
Explanation:
I am not sure it could also be, well I don't know.
Hopefully its correct, sorry if it not.
7i - 2
(2 + 5i) - (4 - 2i)
2 + 5i - 4 + 2i
2 - 4 + 7i
7i + 2 - 4
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