Multiple Choice Questions on If x ndash 2 and x 3 are the factors of the equation x2 k1x k2 0 then what are the values of k1 and ........... for SSC CGL Exam Preparation

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Multiple Choice Questions

If x ndash 2 and x 3 are the factors of the equation x2 k1x k2 0 then what are the values of k1 and ...........

Quantitative Aptitude (CGL) Algebra
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    If (x – 2) and (x + 3) are the factors of the equation x2 + k1x + k2 = 0, then what are the values of k1 and k2?

    k1 = 6, k2 = – 1

    Incorrect Answer

    k 1 = 1, k 2 = – 6

    Incorrect Answer

    k 1 = 1, k2 = 6

    Correct Answer

    k1 = – 6, k2 = 1

    Incorrect Answer
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    Explanation:

    If (x– 2) & (x + 3) are factors, the x = 2 and –3 satisfied the eqn.
    4 + k1 × 2 + k2 = 0…(i)
    9 – 3k1 + k2 = 0…(ii)
    From these eqn k1 = 1. k2 = –6

    By: MIRZA SADDAM HUSSAIN
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