题目内容
把a3-2a2+a分解因式的结果是( )
A.a2(a-2)+a | B.a(a2-2a) | C.a(a+1)(a-1) | D.a(a-1)2 |
a3-2a2+a
=a(a2-2a+1)
=a(a-1)2.
故选D.
=a(a2-2a+1)
=a(a-1)2.
故选D.
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题目内容
A.a2(a-2)+a | B.a(a2-2a) | C.a(a+1)(a-1) | D.a(a-1)2 |