把多项式－x2－2x－1分解因式所得的结果是„„„„„„„„„„„„„„„„„„（              ...

问题详情：

把多项式－x2－2x－1 分解因式所得的结果是„„„„„„„„„„„„„„„„„„（                                                                                           ）

A．(－x－1)2                                                  B．－(x－1)  2                                         C．(x－1)2                                                   D．－(x＋1)2

【回答】

D

知识点：因式分解

题型：选择题