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

Toán Lớp 8: (15$x^{3}$ $y^{2}$ – 6$x^{2}$ $y^{3}$) : 3$x^{2}$ $y^{2}$ – 4x

Toán Lớp 8: (15$x^{3}$ $y^{2}$ – 6$x^{2}$ $y^{3}$) : 3$x^{2}$ $y^{2}$ – 4x

Comments ( 2 )

  1. Giải đáp+giải thích các bước giải:
    (15x^3y^2-6x^2y^3): 3x^2y^2-4x
    =15x^3y^2: 3x^2y^2-6x^2y^3: 3x^2y^2-4x
    =5x-2y-4x
    =(5x-4x)-2y
    =x-2y

  2. Giải đáp:
     $(15x³y²-6x²y³):3x²y²-4x$
    $= [(15x³y²:3x²y²)-(6x²y³:3x²y²)]-4x$
    $= 5x-2y-4x$
    $= (5x-4x)-2y$
    $= x-2y$
     

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

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