因式分解:x^2-2xy+y^2+x-y

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因式分解:x^2-2xy+y^2+x-y
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因式分解:x^2-2xy+y^2+x-y
因式分解:x^2-2xy+y^2+x-y

因式分解:x^2-2xy+y^2+x-y
x^2-2xy+y^2+x-y
=(x-y)^2+(x-y)
=(x-y)(x-y+1)

x^2-2xy+y^2+x-y =(x-y)^2+(x-y) =(x-y)(x-y+1)

(x-y)×(x-y-1)