Answer: -38i-50
Explanation:
First what you want to do is follow the FOIL method here
(5·-2)+(-6i·-2)+(5·-10i)+(-6i·-10i)
Second you want to combine like terms:
-60i^2+(-50i+12i)-10
After that, i^2 = -1:
-60(-1)-10-38i
So you end up with -38i+50
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