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Math Help - roots real integers

  1. #1
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    roots real integers

    For what values does the equation: X2 2(a-1)x + (4a-3)=0 have real roots? For what integer values of a are the roots real integers?

    thanks
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  2. #2
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    Shall we take a shot at the Quadratic Formula?
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  3. #3
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    Quote Originally Posted by quah13579 View Post
    For what values does the equation: X2 2(a-1)x + (4a-3)=0 have real roots? For what integer values of a are the roots real integers?

    thanks
    Use the discriminant. It must be > or = to zero for the roots of the equation to be real. You'll get a quadratic equation for the discriminant. Wherever this equation is zero or positive (the y value), the roots of the original equation will be real.
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