Multiple Choice Questions on I 2x2 18x 17 II 2 97y 117 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I 2x2 18x 17 II 2 97y 117 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. 2x2-18x= -17

    II. 2-97y=-117

    x > y

    Incorrect Answer

    x ≥ y

    Incorrect Answer

    x ≤ y

    Incorrect Answer

    x = y or Cannot be determined

    Correct Answer
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    Explanation:

    2x2-35x= -17
    2x2 -34x-1x+17=0
    2x(x -17) -1(x -17)=0
    (x-17) ( 2x-1)=0
    x= 17 , 1/2
    20y2-97y=-117
    20y2 -45y-52y+117 =
    5y( 4y-9) -13(4y-9)=0
    (4y-9) ( 5y-13)=0
    y= 9/4, 13/5
    Hence the relation cannot be determined

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