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Homework Help: Roots of equation

  1. Aug 24, 2008 #1
    1. The problem statement, all variables and given/known data
    Find the range of values of k for which the roots of the equation
    are not real.



    2. Relevant equations
    y = x2 + (k - 2) x + (k + 3)


    3. The attempt at a solution
    I have no idea...
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Aug 24, 2008 #2
    Look at the discriminant.
     
  4. Aug 24, 2008 #3

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Or complete the square (same result, obviously) :smile:
     
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