因式分解(x2+1)y2-x2-1

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因式分解(x2+1)y2-x2-1因式分解(x2+1)y2-x2-1因式分解(x2+1)y2-x2-1(x2+1)y2-x2-1=x2y2+y2-x2-1=(x2y2-x2)+(y2-1)=x2(y2

因式分解(x2+1)y2-x2-1
因式分解(x2+1)y2-x2-1

因式分解(x2+1)y2-x2-1
(x2+1)y2-x2-1
=x2y2+y2-x2-1
=(x2y2-x2)+(y2-1)
=x2(y2-1)+(y2-1)
=(x2-1)(y2-1)
=(x+1)(x-1)(y+1)(y-1)

(X2+1)(Y2-1)

(2x+1)2y-2x-1
=4xy+2y-2x-1
=4xy-2x+2y-1
=2x(2y-1)+(2y-1)
=(2x+1)(2y-1)

(x2+1)(y-1)(y+1)

因式分解(x2+1)y2-x2-1 因式分解x2y2-x2-y2+1 X2y2-x2-y2+1因式分解. 因式分解x2+y2-xy-x-y+1 x2+y2-x2y-4xy-1因式分解 x2-y2-2y-1 因式分解 2xy-x2+1-y2因式分解因式分解(X2-1)(Y2-1)-4XY请高人相助 2x2+xy-3y2+x+4y-1因式分解因式分解：x3+（y-1）x2-2xy-y2 (x2+y2-1)-4x2y2因式分解2是平方 9y2-4x2-4x-1因式分解为 x2-3xy+2y2+y+1怎么因式分解 X2-3xy+2y2+y+1怎么因式分解因式分解x4+x2+1, x2+x4+1 因式分解 X2+1因式分解因式分解x2+xy-3y2