Multiple Choice Questions on I 3x sup2 ndash 13x ndash 10 0 II 3y sup2 10y ndash 8 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I 3x sup2 ndash 13x ndash 10 0 II 3y sup2 10y ndash 8 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. 3x² – 13x – 10 = 0

    II. 3y² + 10y – 8 = 0

    y ≥ x

    Incorrect Answer

    x ≥ y

    Incorrect Answer

    y > x

    Incorrect Answer

    No relation

    Correct Answer
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    Explanation:

    I. 3x² – 13x – 10 = 0
    3x² – 15x + 2x – 10 = 0
    (x – 5) (3x + 2) = 0
    x= 5, − 2 /3
    II. 3y² + 10y – 8 = 0
    ⇒ 3y² + 12y – 2y – 8 = 0
    ⇒ (y + 4) (3y – 2) = 0
    ⇒ ?? = −4, 2/3
    No relation

    By: Amit Kumar
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