Multiple Choice Questions on I 35x2 51x 18 0 II 9y2 1 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I 35x2 51x 18 0 II 9y2 1 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. 35x2+51x+18=0

    II. 9y2 =1

    x > y

    Incorrect Answer

    x ≥ y

    Incorrect Answer

    x < y

    Correct Answer

    x = y or Cannot be determined.

    Incorrect Answer
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    Explanation:

    35x2+51x+18=0
    35x2 + 30x+ 21x+18=0
    5x(7x +6) + 3(7x +6)=0
    (7x+6) ( 5x+3)=0
    x= -6/7 , -3/5
    9y2 =1
    9y2-1=0
    (3y-1) ( 3y+1)=0
    y= 1/3,- 1/3
    Hence y>x

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