Multiple Choice Questions on Directions Two equations I and II are given You have to solve both the equations and give answer I 2........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Directions Two equations I and II are given You have to solve both the equations and give answer I 2...........

Quantitative Aptitude ( CCS) Quadratic Equations
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    Directions: Two equations (I) and (II) are given. You have to solve both the equations and give answer.

    I. 2x² + 7x + 5 = 0

    II.3y² + 12y + 9 = 0

    x>y

    Incorrect Answer

    y>x

    Incorrect Answer

    x>=y

    Incorrect Answer

    No Relation

    Correct Answer
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    Explanation:

    I.2x² + 7x + 5 = 0
    2x² + 2x + 5x + 5 = 0
    2x (x + 1) + 5 (x + 1) = 0
    (2x + 5) (x + 1) = 0
    x = – 5/2 , – 1
    II.3y² + 12y + 9 = 0
    3y² + 9y + 3y + 9 = 0
    3y (y + 3) +3 (y + 3) = 0
    (3y + 3) (y + 3) = 0
    y = –1, – 3
    No relation

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