Answer:
-1+4i
Step-by-step explanation:
use complec arithmetic rule. a+bi/c+di=(c-di)(a+bi)/(c-di)(c+di)= (ac+db)+(bc-ad)i/c^2+d^2
a=8, b=19, c=4, d=-3
= (8*4+19(-3))+(19*4-8(-3))i/ 4^2+(-3)^2
Refine = -25+100i/25
Simplify and you get :
-1+4i
Hope this helps
