(X+Y)²-2(X+Y)(X-Y)+(X-Y)²
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 17:34:44
![(X+Y)²-2(X+Y)(X-Y)+(X-Y)²](/uploads/image/z/8855906-50-6.jpg?t=%28X%2BY%29%26%23178%3B-2%28X%2BY%29%28X-Y%29%2B%28X-Y%29%26%23178%3B)
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(X+Y)²-2(X+Y)(X-Y)+(X-Y)²
(X+Y)²-2(X+Y)(X-Y)+(X-Y)²
(X+Y)²-2(X+Y)(X-Y)+(X-Y)²
(X+Y)²-2(X+Y)(X-Y)+(X-Y)²
=(X+Y-X+Y)²
=4Y²
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 17:34:44
(X+Y)²-2(X+Y)(X-Y)+(X-Y)²
(X+Y)²-2(X+Y)(X-Y)+(X-Y)²
(X+Y)²-2(X+Y)(X-Y)+(X-Y)²
(X+Y)²-2(X+Y)(X-Y)+(X-Y)²
=(X+Y-X+Y)²
=4Y²