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

Toán Lớp 8: y(x-y)+2x-2y ( phân tích đa thức thành nhân tử)

Toán Lớp 8: y(x-y)+2x-2y ( phân tích đa thức thành nhân tử)

Comments ( 2 )

  1. y(x-y)+2x-2y

    =y(x-y)+(2x-2y)

    =y(x-y)+2(x-y)

    =(x-y)(y+2) 

  2. Answer

    y . (x – y) + 2x – 2y

    = y . (x – y) + 2 . (x – y)

    = (y + 2) . (x – y)

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

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