Question 1192530
{{{(x-4)^2(x-(4-5i))(x-(4+5i))}}}
and you can take from here onward.

{{{(x-4)^2((x-4)+5i)((x-4)-5i)}}}

{{{(x-4)^2((x-4)^2-(5i)^2)}}}

{{{(x^2-8x+16)(x^2-8x+16+25)}}}

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