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Homework Help: Polynomial Root Question

  1. Oct 2, 2007 #1
    1. The problem statement, all variables and given/known data:
    We have 'n' quadratics is the form x^2 +aix+bi
    All values of A and b are different.
    Is it possible to have all values of A and B as the roots of the n quadratics

    2. The attempt at a solution:
    Well. I know that all values of 'a' and 'b' must (if possible) be in one of the n (x-t)(x-s) where t and s are two values of a and/or b. I have proven that when n=2 its possible for all values, however i have difficulty with n>3
  2. jcsd
  3. Oct 7, 2007 #2
    Could you please clarify the question? Are there any other constraints to the question (like the roots must be real/complex)?

    Why should there be a problem when n>3?
  4. Oct 8, 2007 #3
    Well there are no other restraints. Only all the values of a and b are different. I assume that both complex and real numbers are possible.

    The answer to your second question I was having difficulty with N>3 is because there are not fixed 'positions' for each value
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