(a²-2ab+b²)/a-b=a²-b²/( )
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 11:38:44
![(a²-2ab+b²)/a-b=a²-b²/( )](/uploads/image/z/5499178-34-8.jpg?t=%EF%BC%88a%26%23178%3B-2ab%2Bb%26%23178%3B%EF%BC%89%2Fa-b%3Da%26%23178%3B-b%26%23178%3B%2F%EF%BC%88+%EF%BC%89)
(a²-2ab+b²)/a-b=a²-b²/( )
(a²-2ab+b²)/a-b=a²-b²/( )
(a²-2ab+b²)/a-b=a²-b²/( )
a²-2ab+b²
=(a-b)²
(a-b)²/a-b
=a-b
a²-b²
=(a+b)(a-b)
∴(a²-2ab+b²)/a-b=a²-b²/(a+b )
疑问,追问;
方法错误、计算错误,请评论,
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 11:38:44
(a²-2ab+b²)/a-b=a²-b²/( )
(a²-2ab+b²)/a-b=a²-b²/( )
(a²-2ab+b²)/a-b=a²-b²/( )
a²-2ab+b²
=(a-b)²
(a-b)²/a-b
=a-b
a²-b²
=(a+b)(a-b)
∴(a²-2ab+b²)/a-b=a²-b²/(a+b )
疑问,追问;
方法错误、计算错误,请评论,