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    prats1810's Avatar
    prats1810 Posts: 1, Reputation: 1
    New Member
     
    #1

    Aug 29, 2009, 02:04 PM
    solve this quadratic prob. As soon as possible
    if d equation x^3+3px^2+3qx+r=0 and x^2+2px+q=0have a common root ,then 4(p^2-q)(q^-pr)=?
    morgaine300's Avatar
    morgaine300 Posts: 6,561, Reputation: 276
    Uber Member
     
    #2

    Aug 29, 2009, 02:51 PM

    Please go read our guidelines for posting homework problems:
    Ask Me Help Desk - Announcements in Forum : Homework Help

    We are not here to "solve" your problems for you, but rather help you figure them out. Furthermore, some of us don't respond to demands like "solve as soon as possible" very well. We're all volunteers here and you're getting free help. People are here when they have time and are not responsible for your schedule.
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
     
    #3

    Aug 29, 2009, 03:06 PM
    Hint: Note the discriminant of the quadratic is

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