Multiple Choice Questions on I x 2 ndash 15x 56 0 II y 2 2y ndash 63 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I x 2 ndash 15x 56 0 II y 2 2y ndash 63 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I.x^2 – 15x + 56 = 0

    II.y^2 + 2y – 63 = 0

    y > x

    Incorrect Answer

    x>=y

    Correct Answer

    y >= x

    Incorrect Answer

    No relation

    Incorrect Answer
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    Explanation:

    I.x^2 – 15x + 56 = 0
    =>x^2 – 7x – 8x + 56 = 0
    =>(x-7)(x-8) = 0
    =>x = 7,8
    From II:
    II.y^2 + 2y – 63 = 0
    =>y^2 + 9y – 7y – 63 = 0
    =>(y+9)(y-7)= 0
    => y = -9,7
    x >= y

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