有關A.xy2x2y2的精選大全

下列計算正確的是A.(x+y)2=x2+y2                                 ...
問題詳情:下列計算正確的是A.(x+y)2=x2+y2                                             B.(-xy2)3=-x3y6C.x6÷x3=x2                          ...
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