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    ash23's Avatar
    ash23 Posts: 4, Reputation: 1
    New Member
     
    #1

    Aug 23, 2008, 02:25 PM
    discriminant property
    x^2 + 2.20x+1.21 =0

    &&

    4x^2 + 5x + 13/8

    "use the discriminant to determine the number of real solutions of the equation.
    do not solve the equation "
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #2

    Aug 23, 2008, 03:39 PM
    The discriminant is

    Plug in you're a,b,c and see what you get.

    Here are the conditions.

    If the discriminant is >0, then it has 2 real roots.

    If it = 0, then it has one real root of multiplicity 2.

    If it is <0, then it has no real roots.

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