pre calc help

(-2 +  4i) * i^3  =  -2i^3  +  4i^4  = -2 (-1)(i) + 4(1)  = 2i  + 4 = 4 + 2i ⇒  Note that  this lies in Quadrant l

So

-2 + 4i    lies  in  Quadrant ll

Clockwise

Quadrant  l