Question 5212
 Two roots their sum is 4 and their product is 1. 
 
 So the corresponding quadratic equation is
 x^2 - 4x + 1 = 0
 
 and we obtain the roots are

  2+ sqrt(3) and 2- sqrt(3) immediately.

 That is the whole story.

 The reason why I solve this kind of questions is  I don't
 want you see other possible long answers.

 Kenny