分解因式x^2y+xy^2+x^2+2XY+y^2+X+y
问题描述:
分解因式x^2y+xy^2+x^2+2XY+y^2+X+y
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)
如果认为讲解不够清楚,