Question 1103671
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(1) I can see what you are doing in the work you show; but I don't know how you get to your starting point from the information you show on the first line of your message.<br>
What does the "N=4" mean?
And it appears you are saying that "-4(&#8531;)" is a root; but I don't know how to interpret that expression.  From the work you show, the real roots are -3 and 1/4....<br>
(2) But my real concern is this: is there a question here?