代数式(x-y)的平方-(x+y)的平方+(-x-y)的平方-(y-x)的平方的值是A.4x+ (4y的平方) B.4xyC.2x的平方-4xy+ (2y的平方) D.0能顺便告诉下.......怎么做的么?(要过程)
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![代数式(x-y)的平方-(x+y)的平方+(-x-y)的平方-(y-x)的平方的值是A.4x+ (4y的平方) B.4xyC.2x的平方-4xy+ (2y的平方) D.0能顺便告诉下.......怎么做的么?(要过程)](/uploads/image/z/6704279-71-9.jpg?t=%E4%BB%A3%E6%95%B0%E5%BC%8F%28x-y%29%E7%9A%84%E5%B9%B3%E6%96%B9-%28x%2By%29%E7%9A%84%E5%B9%B3%E6%96%B9%2B%28-x-y%29%E7%9A%84%E5%B9%B3%E6%96%B9-%28y-x%29%E7%9A%84%E5%B9%B3%E6%96%B9%E7%9A%84%E5%80%BC%E6%98%AFA.4x%2B+%284y%E7%9A%84%E5%B9%B3%E6%96%B9%29++++++++++B.4xyC.2x%E7%9A%84%E5%B9%B3%E6%96%B9-4xy%2B+%282y%E7%9A%84%E5%B9%B3%E6%96%B9%29+++++++++++D.0%E8%83%BD%E9%A1%BA%E4%BE%BF%E5%91%8A%E8%AF%89%E4%B8%8B.......%E6%80%8E%E4%B9%88%E5%81%9A%E7%9A%84%E4%B9%88%3F%28%E8%A6%81%E8%BF%87%E7%A8%8B%29)
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