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10th Class Mathematics Quadratic Equations Question Bank Quadratic Equation

  • question_answer
    The sum of squares of two consecutive positive even integers is 340. Find them.

    A)  12, 14      

    B)  4, 6          

    C)  6, 8                             

    D)  10, 12

    Correct Answer: A

    Solution :

    (a): \[{{n}^{2}}+{{(n+2)}^{2}}=340\Rightarrow 2{{n}^{2}}+4n+4\] \[=340\Rightarrow {{n}^{2}}+2n-168=0;\] further solve.                        


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