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

Toán Lớp 8: (20x4y – 25x2y2 – 5x2y) : 5x2y

Toán Lớp 8: (20x4y – 25x2y2 – 5x2y) : 5x2y

Comments ( 2 )

  1. Giải đáp:
    4x^2 – 5y – 1
    Lời giải và giải thích chi tiết:
    (20x^4 y – 25x^2 y^2 – 5x^2 y) : 5x^2 y
    = (20x^4 y : 5x^2 y) – (25x^2 y^2 : 5x^2 y) – (5x^2 y : 5x^ 2y)
    = 4x^2 – 5y – 1

  2. (20x^4y-25x^2y^2-5x^2y):5x^2y
    =(20x^4y:5x^2y)-(25x^2y^2 : 5x^2y)-(5x^2y : 5x^2y)
    =4x^2-5y-1

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