X2y2-x2-y2+1因式分解。要有解释

Question

如题所述

Answer 1

x^2(y^2-1)-(y^2-1)=(x^2-1)(y^2-1)=(x+1)(x-1)(y+1)(y-1)本回答被提问者采纳

Answer 2

X2y2-x2-y2+1
=x2(y2-1)-(y2-1)
=(y2-1)(x2-1)
=(y+1)(y-1)(x+1)(x-1)

Answer 3

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

Answer 4

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