因式分解x3y3-x2y2-xy+1快

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因式分解x3y3-x2y2-xy+1快因式分解x3y3-x2y2-xy+1快因式分解x3y3-x2y2-xy+1快x3y3-x2y2-xy+1=x^2y^2(xy-1)-(xy-1)=(xy-1)(x

因式分解x3y3-x2y2-xy+1快
因式分解x3y3-x2y2-xy+1

因式分解x3y3-x2y2-xy+1快
x3y3-x2y2-xy+1 = x^2y^2(xy - 1) - (xy - 1) = (xy - 1)(x^2y^2 - 1) = (xy - 1)^2(x y + 1)