Multiple Choice Questions on I 3x2 16x 20 0 II 3y2 8y 4 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I 3x2 16x 20 0 II 3y2 8y 4 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. 3x2 + 16x + 20 = 0,

    II. 3y2 + 8y + 4 = 0

    x > y

    Incorrect Answer

    x < y

    Incorrect Answer

    x ≥ y

    Incorrect Answer

    x ≤ y

    Correct Answer
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    Explanation:

    3x2 + 16x + 20 = 0
    3x2 + 6x + 10x + 20 = 0
    So x = -10/3, -2
    3y2 + 8y + 4 = 0
    3y2 + 6y + 2y + 4 = 0
    So y = -2, -2/3
    put on number line
    -10/3…. -2…. -2/3

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