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分解因式x^2y+xy^2+x^2+2XY+y^2+X+y
人气:380 ℃ 时间:2020-08-31 04:23:57
解答
x^2y+xy^2+x^2+2XY+y^2+X+y
=xy(x+y)+(x+y)^2+(x+y)
=(x+y)(xy+x+y+1)
=(x+y)(x+1)(y+1)
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