分解因式想想x^2-2x+1-y^2

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分解因式想想x^2-2x+1-y^2分解因式想想x^2-2x+1-y^2分解因式想想x^2-2x+1-y^2x^2-2x+1-y^2=(x-1)²-y²=(x-1-y)(x-1+y

分解因式想想x^2-2x+1-y^2
分解因式想想x^2-2x+1-y^2

分解因式想想x^2-2x+1-y^2
x^2-2x+1-y^2
=(x-1)²-y²
=(x-1-y)(x-1+y)

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