You did not state a question, but I assume you want a polynomial of degree 3 with REAL coefficients and the indicated zeros. For the coefficients to be real, the complex conjugate of any complex zero must also be a zero. Therefore the zeros are
4 - i
4 + i
The polynomial is
p(x) = A(x - 0)[x - (4 - i)][x - (4 + i)]
where A is real and A ≠ 0. You can expand to standard form if you wish. All of the coefficients will be real.