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Discussion :: Quadratic Equations

  1. Find the roots of quadratic equation: 3x2 - 7x - 6 = 0?
    2. A.
    -6, 3
    B.
    3, -2/3
    C.
    -5, 2
    D.
    -9, 2
    E.
    None of these

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    Answer : Option B

    Explanation :

    3x2 - 9x + 2x - 6 = 0
    3x(x - 3) + 2(x - 3) = 0
    (x - 3)(3x + 2) = 0 => x = 3, -2/3

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