Question 1015060
1) {{{(x-(3+i))(x-(3-i)) =  ((x-3)-i)((x-3)+i) = (x-3)^2 - i^2 = x^2 - 6x +9 +1 = x^2 - 6x +10}}}

2)  {{{(x-(7-2i))(x-(7+2i)) =  ((x-7)+2i)((x-7)-2i) = (x-7)^2 - 4i^2 = x^2 - 14x +49 +4 = x^2 - 14x +53}}}
 
3)  {{{(x-(1-sqrt(3)))(x-(1+sqrt(3))) =  ((x-1)+sqrt(3))((x-1)-sqrt(3)) = (x-1)^2 - (sqrt(3))^2 = x^2 - 2x +1 -3 = x^2 - 2x -2}}}