问题
选择题
| 下列各式中错误的是( ) |
| A.[(x-y)5 ]2n =(x-y)10n B.[(a+b)m ]n =(a+b)mn C.[(a-b)3 ]-2 =(a-b)－6 D.[(x-y)m-1 ]3 =(x-y)3m-1 |
答案
答案：D
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| 下列各式中错误的是( ) |
| A.[(x-y)5 ]2n =(x-y)10n B.[(a+b)m ]n =(a+b)mn C.[(a-b)3 ]-2 =(a-b)－6 D.[(x-y)m-1 ]3 =(x-y)3m-1 |
答案：D