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sorry I asked my question wrong. . .it was "Find the 3rd degree polynomial with roots 3 and 2 + i"

a final and not so pretty way is to start with
\[(x-(2+i))(x-(2-i))\] and multiply out

yes, that is what we are trying to do

first step, find the quadratic with zeros \(2+i\) and its conjugate \(2-i\)

Thank you so much~<3 The explanation was very clear and helpful.