(a+b)×(a+b)=a×(a+b)+b×(a+b)=(a²+ab)+(ab+b²)=a²+2ab+b².那么﹙a+b﹚﹚×﹙a-b﹚=多少
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 01:27:54
![(a+b)×(a+b)=a×(a+b)+b×(a+b)=(a²+ab)+(ab+b²)=a²+2ab+b².那么﹙a+b﹚﹚×﹙a-b﹚=多少](/uploads/image/z/2506600-64-0.jpg?t=%28a%2Bb%29%C3%97%28a%2Bb%29%3Da%C3%97%28a%2Bb%29%2Bb%C3%97%28a%2Bb%29%3D%28a%26%23178%3B%2Bab%29%2B%28ab%2Bb%26%23178%3B%29%3Da%26%23178%3B%2B2ab%2Bb%26%23178%3B.%E9%82%A3%E4%B9%88%EF%B9%99a%EF%BC%8Bb%EF%B9%9A%EF%B9%9A%C3%97%EF%B9%99a%EF%BC%8Db%EF%B9%9A%EF%BC%9D%E5%A4%9A%E5%B0%91)
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 01:27:54