X2y2-x2-y2+1因式分解.
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X2y2-x2-y2+1因式分解.X2y2-x2-y2+1因式分解.X2y2-x2-y2+1因式分解.x^2(y^2-1)-(y^2-1)=(x^2-1)(y^2-1)=(x+1)(x-1)(y+1)
X2y2-x2-y2+1因式分解.
X2y2-x2-y2+1因式分解.
X2y2-x2-y2+1因式分解.
x^2(y^2-1)-(y^2-1)=(x^2-1)(y^2-1)=(x+1)(x-1)(y+1)(y-1)
x^2y^2-x^2-y^2+1
=x^2(y^2-1)-(y^2-1)
=(x^2-1)(y^2-1)
X2y2-x2-y2+1
=x2(y2-1)-(y2-1)
=(y2-1)(x2-1)
=(y+1)(y-1)(x+1)(x-1)
x^2y^2-x^2-y^2+1
=x^2(y^2-1)-(y^2-1)
=(x^2-1)(y^2-1)
因式分解x2y2-x2-y2+1
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