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Answer:

Step-by-step explanation:
Given
-- Leading coefficient

Required
Determine the polynomial
Represent the zeros with a and b
Such that


The polynomial is:


However, to solve further: We need to symmetrise over 3-i and its conjugate


To define a suitable function, the expression becomes




Open bracket



$0.30
Here's why:
3.60 30
--------- = -----
12 1
3.60 / 12 = .3
12 / 12 = 1