若x²-y²-x+y=(x-y)A,则A=.若x²-y²-x+y=(x-y)A,则A=.

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若x²-y²-x+y=(x-y)*A,则A=__________.若x²-y²-x+y=(x-y)*A,则A=__________.若x²-y

若x²-y²-x+y=(x-y)*A,则A=__________.若x²-y²-x+y=(x-y)*A,则A=__________.
若x²-y²-x+y=(x-y)*A,则A=__________.
若x²-y²-x+y=(x-y)*A,则A=__________.

若x²-y²-x+y=(x-y)*A,则A=__________.若x²-y²-x+y=(x-y)*A,则A=__________.
答：
x^2-y^2-x+y
=(x-y)(x+y)-(x-y)
=(x-y)(x+y-1)
=(x-y)*A
所以：A=x+y-1