(x²+y²)²-4x²y²=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 02:14:32
![(x²+y²)²-4x²y²=?](/uploads/image/z/8624137-49-7.jpg?t=%28x%26%23178%3B%2By%26%23178%3B%EF%BC%89%26%23178%3B-4x%26%23178%3By%26%23178%3B%3D%3F)
(x²+y²)²-4x²y²=?
(x²+y²)²-4x²y²=?
(x²+y²)²-4x²y²=?
原式
=x的4次方+2x²y²+y的4次方-4x²y²
=x的4次方-2x²y²+y的4次方
=(x²-y²)²
原式
=x的4次方+2x²y²+y的4次方-4x²y²
=x的4次方-2x²y²+y的4次方
=(x²-y²)²
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 02:14:32
(x²+y²)²-4x²y²=?
(x²+y²)²-4x²y²=?
(x²+y²)²-4x²y²=?
原式
=x的4次方+2x²y²+y的4次方-4x²y²
=x的4次方-2x²y²+y的4次方
=(x²-y²)²
原式
=x的4次方+2x²y²+y的4次方-4x²y²
=x的4次方-2x²y²+y的4次方
=(x²-y²)²