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

Toán Lớp 8: x(x-2018)-x+2018 phân tích đa thức

Toán Lớp 8: x(x-2018)-x+2018 phân tích đa thức

Comments ( 2 )

  1.  x(x-2018)-x+2018
    =x^2-2018x-x+2018
    =x^2-x-2018x+2018
    =x(x-1)-2018(x-1)
    =(x-1)(-2018+x)

  2. x ( x – 2018 ) – x + 2018
    → x ( x – 2018 ) – ( x – 2018 ) 
    = ( x – 2018 ) ( x – 1 ) 

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