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分解因式:x3+2x2y+2xy2+y3=______.
人气:413 ℃ 时间:2019-11-16 18:12:18
解答
x3+2x2y+2xy2+y3=(x3+y3)+(2x2y+2xy2
=(x+y)(x2-xy+y2)+2xy(x+y)
=(x+y)(x2+xy+y2
故答案为:(x+y)(x2+xy+y2
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