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Find 3 solutions to the following polynomial equations: 1-3ix+(3ix)^2+(-3ix)^3=0. Answer must be in polar form; ex:...

Find 3 solutions to the following polynomial equations:

1-3ix+(3ix)^2+(-3ix)^3=0. Answer must be in polar form; ex: x1= 5*(cos(pi/2) + i*sin(pi/2) )

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