题目内容
下列各式中,不能用同底数幂的乘法法则化简的是( )
| A.(x-y)(x-y)2 | B.(x+y)(x-y)2 |
| C.(x-y)(y-x)2 | D.(x-y)(y-x)2(x-y)2 |
底数不相同的是(x+y)(x-y)2.
故选B.
故选B.
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题目内容
| A.(x-y)(x-y)2 | B.(x+y)(x-y)2 |
| C.(x-y)(y-x)2 | D.(x-y)(y-x)2(x-y)2 |