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

Toán Lớp 7: x^2+10y-5x-2xy mn giúp mk vs ạ

Toán Lớp 7: x^2+10y-5x-2xy
mn giúp mk vs ạ

Comments ( 1 )

  1. x^2+10y-5x-2xy
    =(x^2-5x)+(-2xy+10y)
    =x(x-5)-2y(x-5)
    =(x-2y)(x-5)
     

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