Multiple Choice Questions on I 35x2 18x 81 0 II 10y2 184y 114 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I 35x2 18x 81 0 II 10y2 184y 114 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. 35x2-18x-81=0

    II. 10y2+184y-114=0

    x > y

    Correct Answer

    x ≥ y

    Incorrect Answer

    x < y

    Incorrect Answer

    x = y or Cannot be determined

    Incorrect Answer
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    Explanation:

    35x2-18x-81=0
    35x2 – 45x+ 63x-81=0
    5x(7x -9) + 9(7x -9)=0
    (7x-9) ( 5x+9)=0
    x= 9/7 , -9/5
    10y2+184y-114=0
    10y2 -6y+ 190y -114=0
    y( 10y-6) + 19(10y-6)=0
    (10y-6) ( y+19)=0
    y= 6/10,- 19
    Hence x>y

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