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Quadratic equation

  1. Apr 8, 2009 #1
    If a(12a+5b+2c)>0 and the equation ax^2+bx+c=0 has roots y and z , then find out the range of the roots of the equation ....
     
  2. jcsd
  3. Apr 8, 2009 #2
    For brainy students!!
     
  4. Apr 8, 2009 #3
    Is this a homework question of yours?
     
  5. Apr 8, 2009 #4
    Insulting our intelligence isn't very nice if you're asking for help!
     
  6. Apr 8, 2009 #5

    arildno

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    Science Advisor
    Homework Helper
    Gold Member
    Dearly Missed

    Well, so you have got:
    [tex]ay^{2}+by+c=0[/tex]
    [tex]az^{2}+bz+c=0[/tex]
    Along with your inequality.

    Have you any brainy suggestions of your own?
     
  7. Apr 9, 2009 #6

    berkeman

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    Staff: Mentor

    antiparticle, as I told you in my warning just now as I moved this to the Homework Help forums, you MUST show your own work on this homework/coursework question. We do not do your work for you, and we do not help you cheat.

    Show us your work.
     
  8. Apr 9, 2009 #7
    From the sum and the product rule of the quadratic equation we can easily get
    12-5(y+z)+2yz>0..
    and from this one we can get some conditions..
     
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