I honestly didn't work it out but I would try to work out this problem in a different way than what I was taught. If you did this already and you still got the same answer as before, then it is most likely correct. I know I didn't give you an answer but I still hope it helped.
Solve for x by simplifying both sides of the equation, then isolating the variable.
x = -22
What is 'V =' referring to?
I = sqrt(-1)
i^2 = -1
(-i)^2 = (-i)(-i) = i^2 = -1
(-i)^3 = (-i)(-i)(-i) = (-i)(i^2) = i
use these facts to find which equation is correct if x = -i
i bet on 2,3 or 4
