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

Toán Lớp 8: Toán lớp 8 thực hiện phép tính 3x.(2xy_1)

Toán Lớp 8: Toán lớp 8 thực hiện phép tính 3x.(2xy_1)

Comments ( 2 )

  1. 3x.(2xy-1)
    =3x.2xy-3x.1
    =6x^2y-3x
     

  2. 3x(2xy-1)
    =3x.2xy-3x.1
    =6x^2y-3x
     

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