Evaluate (4+2i )/( -1+i)
(4+2i) / (-1+i)
= (4+2i) / (i-1)
(4+2i)(i+1) / (i-1)(i+1)
= 2(i^2)+6i+4 / (i^2)-1
= 6i-2+4 / -1-1
= 6i+2 / -2
= -3i-1
