Multiple Choice Questions on Find the factors of x2 ndash x ndash 132 ........ for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

Find the factors of x2 ndash x ndash 132 ........

Quantitative Aptitude (RRB NTPC) Number System
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    Find the factors of (x2 – x – 132)

    (x – 11) (x – 12)

    Incorrect Answer

    (x + 12) (x – 11)

    Incorrect Answer

    (x + 11) (x + 12)
     

    Incorrect Answer

    (x – 12) (x + 11)

    Correct Answer
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    Explanation:

    (x2 – x – 132)
    = x2 -12x+11x-132
    = x(x-12) + 11(x-12)
     = (x-12)(x+11)

    By: Barka Mirza
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