2(x+y)(x-y)-(x+y)^2(x-y)^2
展开全部
解：因式分解：
2(x+y)(x-y)-(x+y)^2(x-y)^2
=(x+y)(x-y)[2-(x+y)(x-y)]
=(x+y)(x-y)(2-x²+y²)
求值：
2(x+y)(x-y)-(x+y)^2(x-y)^2
=2x²-2y²-(x²-y²)²
=2x²-2y²-x^4+2x²y²-y^4
=-x^4+2(1+y²)x²-y^4-2y²
祝你开心
2(x+y)(x-y)-(x+y)^2(x-y)^2
=(x+y)(x-y)[2-(x+y)(x-y)]
=(x+y)(x-y)(2-x²+y²)
求值：
2(x+y)(x-y)-(x+y)^2(x-y)^2
=2x²-2y²-(x²-y²)²
=2x²-2y²-x^4+2x²y²-y^4
=-x^4+2(1+y²)x²-y^4-2y²
祝你开心
本回答由提问者推荐
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
