题目内容
化简:
(1)(
)4×(
)3×(
)2;
(2)an-1·an·a;
(3)(-x2)·(x3)·(-x)2;
(4)x2·x5+x·x2·x4;
(5)(x-y)2·(y-x)3+2(x-y)·(x-y)4.
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题目内容
化简:
(1)(
)4×(
)3×(
)2;
(2)an-1·an·a;
(3)(-x2)·(x3)·(-x)2;
(4)x2·x5+x·x2·x4;
(5)(x-y)2·(y-x)3+2(x-y)·(x-y)4.