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

Toán Lớp 8: Tính `1/2 x^2 ( 6x – 3 ) – x ( x^2 + 1/2 ) + 1/2 ( x+4)`

Toán Lớp 8: Tính
1/2 x^2 ( 6x – 3 ) – x ( x^2 + 1/2 ) + 1/2 ( x+4)

Comments ( 2 )

  1. 1/2 x^2 ( 6x – 3 ) – x ( x^2 + 1/2 ) + 1/2 ( x+4)

    =3x^3- 3/2 x^2 -x^3- x/2 +x/2 +2

    =x^3 -3/2 x^2 +2

    =(2x^3-3x^2+4)/2

    gửi bạn~~~~~~~

     

  2. Giải đáp+Lời giải và giải thích chi tiết:

    toan-lop-8-tinh-1-2-2-6-3-2-1-2-1-2-4

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