因式分解:(x+3y)²-x-3y
问题描述:
因式分解:(x+3y)²-x-3y
答
=(x+3y)²-(x+3y)
=(x+3y)(x+3y-1)
答
(x+3y)²-x-3y
=(x+3y)²-(x+3y)
=(x+3y)(x+3y-1)
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