(x²+y²)²-4x²y²
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 11:42:09
![(x²+y²)²-4x²y²](/uploads/image/z/6923354-50-4.jpg?t=%28x%26%23178%3B%2By%26%23178%3B%29%26%23178%3B-4x%26%23178%3By%26%23178%3B)
(x²+y²)²-4x²y²
(x²+y²)²-4x²y²
(x²+y²)²-4x²y²
(x²+y²)²-4x²y²
=(x²+y²+2xy)(x²+y²-2xy)
=(x+y)²(x-y)²
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 11:42:09
(x²+y²)²-4x²y²
(x²+y²)²-4x²y²
(x²+y²)²-4x²y²
(x²+y²)²-4x²y²
=(x²+y²+2xy)(x²+y²-2xy)
=(x+y)²(x-y)²