问题标题:
【2(x-1)²-x+1因式分解】
问题描述:

2(x-1)²-x+1因式分解

韩江回答:
  解   2(x-1)²-x+1   =2(x-1)²-(x-1)   =(x-1)[2(x-1)-1]   =(x-1)(2x-3)
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