4x^2 y ^2-(x ^2+y^2 -2^2 ) 因式分解

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/05/23 12:21:34

4x^2y^2-(x^2+y^2-z^2)^2
=(2xy+x^2+y^2-z^2)(2xy-x^2-y^2+z^2)
=[(x+y)^2-z^2][z^2-(x-y)^2]
=(x+y+z)(x+y-z)(z-x+y)(z+x-y)

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