问题
填空题
分解因式:x3+2x2y+2xy2+y3=______.
答案
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)
分解因式:x3+2x2y+2xy2+y3=______.
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)