(x+y)²-z²分之x²-(y-z)²
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/25 10:26:31
![(x+y)²-z²分之x²-(y-z)²](/uploads/image/z/11640595-67-5.jpg?t=%28x%2By%29%26%23178%3B-z%26%23178%3B%E5%88%86%E4%B9%8Bx%26%23178%3B-%28y-z%29%26%23178%3B)
(x+y)²-z²分之x²-(y-z)²
(x+y)²-z²分之x²-(y-z)²
(x+y)²-z²分之x²-(y-z)²
=(x+y-z)(x-y+z)/(x+y+z)(x+y-z)
=(x-y+z)/(x+y+z)
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来源:学生作业帮助网 编辑:作业帮 时间:2024/06/25 10:26:31
(x+y)²-z²分之x²-(y-z)²
(x+y)²-z²分之x²-(y-z)²
(x+y)²-z²分之x²-(y-z)²
=(x+y-z)(x-y+z)/(x+y+z)(x+y-z)
=(x-y+z)/(x+y+z)