Subject

    গাণিতিক যুক্তি

    Topic

    উৎপাদক

    9x2- (2x - 3y)2= ?

    ক)
    (5x - 3y)(x + 3y)
    খ)
    (5x - 3y)(x - 3y)
    গ)
    (5x + 3y)(x - 3y)
    ঘ)
    কোনটিই নয়

    Explanation

    9x 2 -(2x-3y) 2 = (3x) 2 -(2x-3y) 2 = ( 3x+2x-3y) (3x-2x+3y) = (5x-3y)(x+3y)

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