Write a function with the given characteristics:

A polynomial with rational coefficients having roots 3, 3, and 3-i

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If polynomial with rational coefficients has root 3 - i, it also has a root 3 + i (complex conjugate). The example of polynomial with roots 3, 3, 3 - i, 3 + i is (x-3) 2 (x - (3-i)) (x - (3+i)) = (x-3) ² (x-6x+10) = x4-12x3+55x2-114x+90.