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Construct resultant for 3 polynomials

  1. May 2, 2013 #1
    For 2 polynomials f,g, resultant Res(f,g) vanish if and only if f and g has at least a common root.
    However, is there any way to construct a coefficients polynomial of 3 polynomials f,g,h [Res(f,g,h)] that vanish if and only if f,g,h has at least a common root?
     
  2. jcsd
  3. May 2, 2013 #2

    fzero

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