Hi,
I'm studying my algebra and I was trying this exercise:
Solve
z³+iz²-7z-iz-6-6i=0
I found the 2 real solutions (3 and -2) but i can't seem to find the complex one.
I tried this:
(z²-z)(i)=6(i) ==> z= -2 and 3
z³-7z=6==> z= -1, -2 and 3
I found that the complex solution is...