- #1
tizzful
- 14
- 0
First problem
z^2+2z+1=0
where the z in 2z is the conjugate (has a little line ontop)
I just ignored the conjugate because I wasn't sure how to solve it, and I got -1 which is one of the solutions but there's also 1+2i and 1-2i which I understand because they're both conjugate of each other but I don't understand how they got it.
Second problem
z^3-3z^2+4z-12=0 given 2i is a solution... I don't even understand what they mean.
Please help!
z^2+2z+1=0
where the z in 2z is the conjugate (has a little line ontop)
I just ignored the conjugate because I wasn't sure how to solve it, and I got -1 which is one of the solutions but there's also 1+2i and 1-2i which I understand because they're both conjugate of each other but I don't understand how they got it.
Second problem
z^3-3z^2+4z-12=0 given 2i is a solution... I don't even understand what they mean.
Please help!