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Math Help - help me out

  1. #1
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    Oct 2005
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    Post help me out

    I need to find the discriminant of the equations and give the number and type of solutions of the equation??
    Please help

    x^2 + 6x - 16 =0

    2x^2 + 5x - 7=0
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  2. #2
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    Joined
    Oct 2005
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    Quote Originally Posted by bwalters302
    I need to find the discriminant of the equations and give the number and type of solutions of the equation??
    Please help

    x^2 + 6x - 16 =0

    2x^2 + 5x - 7=0

    For equation 1,

    D = (6)^2 - 4(1)(-16) = 100

    As D>0 and a>0

    It is an equation with two real and different roots.


    For equation 2,

    D = (5)^2 -4(2)(-7) = 81

    As D>0, a>0

    This is an equation with two real and different roots.
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