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Railways R.R.C. (Hajipur) Solved Paper Held on 1st Shift 30-11-2014

  • question_answer
    The roots of the equation \[{{x}^{2}}-8x+15=0\]are?

    A) 2, 3                              

    B) 3, 5

    C) 8, 15                            

    D) 6, 5

    Correct Answer: B

    Solution :

    \[{{x}^{2}}-8x+15=0\] \[{{x}^{2}}-5x-3x+15=0\] \[(x-5)\,\,(x-3)=0\] x=3, 5


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