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

Toán Lớp 8: Phân tích đa thức thành nhân tử 6xy +12x-4y-8

Toán Lớp 8: Phân tích đa thức thành nhân tử 6xy +12x-4y-8

Comments ( 2 )

  1. #Lp
    6xy + 12x – 4y – 8
    = 6x ( y+2 ) – 4 ( y + 2 )
    = ( 6x – 4 ) ( y + 2 )
    = 2 ( 3x – 2 ) ( y + 2 )

  2. 6xy +12x-4y-8
    =(6xy+12x)-(4y+8)
    =6x(y+2)-4(y+2)
    =(y+2)(6x-4)
     

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

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