Question 1139707
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As you see from the solution of the other tutor, the roots of the equation are real numbers,


so your assumption "a question about complex numbers" is &nbsp;&nbsp;<U>W R O N G</U>.


It is not for the first time I ask you: stop formulate your hypotheses about the problem, because they are always &nbsp;&nbsp;<U>W R O N G</U>.


Start your post with the standard mantra "Please help me solve this problem".


With this mantra, you always will be in.


Inventing any other introduction, you always will be out, because you don't know any subject.