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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 8: (4x + 2) (2x – 3) (12 $x^{3}$ $y^{2}$ – 18$x^{2}$y) : 2xy

Toán Lớp 8: (4x + 2) (2x – 3)
(12 $x^{3}$ $y^{2}$ – 18$x^{2}$y) : 2xy

Comments ( 2 )

  1. text{@dg}
    text{trình bày trong hình}

    toan-lop-8-4-2-2-3-12-3-y-2-18-2-y-2y

  2. (4x+2).(2x-3)
    =4x.2x-4x.3+2.2x-2.3
    =8x^2-12x+4x-6
    =8x^2-8x-6
    $\\$
    (12x^3y^2-18x^2y):2xy
    =(2xy.6x^2y-2xy.9x):2xy
    =6x^2y-9x
     

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222-9+11+12:2*14+14 = ? ( )