Answer:
-16 + 37i
Step-by-step explanation:
First expand.
You get 12 + 16i + 21i + 28i^2.
Because [tex]i=\sqrt{-1}[/tex], you get 12 + 37i - 28 or -16 + 37i. [tex]\blacksquare[/tex]
A. -16+37i
did it on edge
