Subject

    গাণিতিক যুক্তি

    Topic

    সরলীকরণ

    Square of a number plus two times the number equal 63. What is the number ?

    ক)
    2 or 5
    খ)
    7 or 9
    গ)
    11 or 15
    ঘ)
    13 or 17

    Explanation

    x 2 + 2x = 63

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