Multiple Choice Questions on I x2 x ndash 20 0 II 2y2 13y 15 0 ........ for Mathematics - All Exams Preparation

Quadratic Equations

Quantitative Aptitude ( CCS)

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    I. x2 + x – 20 = 0,

    II. 2y2 + 13y + 15 = 0

    If x > y

    Incorrect Answer

    If x < y

    Incorrect Answer

    If x ≥ y

    Incorrect Answer

    If x = y or relation cannot be established

    Correct Answer
    Explanation:

    x2 + x – 20 = 0
    (x+5)(x-4) = 0
    So x = -5, 4
    2y2 + 13y + 15 = 0
    2y2 + 10y + 3y + 15 = 0
    So y = -5, -3/2
    Put on number line
    -5…. -3/2…. 4


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