Question 876199
x^2+2xy+y^2+x+y



(x^2+2xy+y^2)+x+y



(x+y)^2+x+y ... factor using the perfect square trinomial factoring rule



(x+y)^2+(x+y)



(x+y)(x+y)+1(x+y)



<font color="red">(x+y+1)(x+y)</font>