题目内容
下列各题中分解因式错误的是
A.x2-1=(x+1)(x-1)
B.1-4y2=(1+2y)(1-2y)
C.81x2-64y2=(9x+8y)(9x-8y)
D.(-2y)2-x2=(-2y+x)(2y+x)
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