Solve ix² + 2x - i = 0

it is given that  ix² + 2x -i = 0

multiplying both sides by i ,we get

i²x² + 2x i - i²  = 0

-x² +2x i +1 = 0

x²- 2x i - 1 = 0

by using quadratic formula ,we get

x=i