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Discussion :: Quadratic Equations

  1. The roots of the equation 3x2 - 12x + 10 = 0 are?
    2. A.
    rational and unequal
    B.
    complex
    C.
    real and equal
    D.
    irrational and unequal
    E.
    rational and equal

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    Answer : Option D

    Explanation :

    The discriminant of the quadratic equation is (-12)2 - 4(3)(10) i.e., 24. As this is positive but not a perfect square, the roots are irrational and unequal.

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