Question 59537
The factor would be
(x - 0)(x - 3)(x - 3 - i)(x - 3 + i)
(x - 3 - i)(x - 3 + i) = x^2 -6x + 10
(x - 3)(x^2 - 6x + 10) = x^3 - 9x^2 + 28x - 30
(x - 0)(x^3 - 9x^2 + 28x - 30) = x^4 - 9x^3 + 28x^2 - 30x