问题标题:
因式分解:(X²-2y)²-(1-2y)²
问题描述:
因式分解:(X²-2y)²-(1-2y)²
马千里回答:
(X²-2y)²-(1-2y)²
=(x²-2y+1-2y)(x²-2y-1+2y)
=(x²-4y+1)(x²-1)
=(x²-4y+1)(x+1)(x-1)
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