Answer:
(x + y)(x^2 - xy + y^2)(x + 1)
Step-by-step explanation:
x(x^4/x + xy^3/x) + (x + y)(x^2 - xy + y^2)
x(x^4-1 + y^3) + (x + y)(x^2 - xy + y^2)
x(x^3 + y^3) + (x + y)(x^2 - xy + y^2)
x(x + y)(x^2 - xy + y^2) + (x + y)(x^2 - xy + y^2)
(x + y)(x^2 - xy + y^2)(x(x + y)(x^2 - xy + y^2/(x + y)(x^2 - xy + y^2 + x(x + y)(x^2 - xy + y^2/x(x + y)(x^2 - xy + y^2)
(x + y)(x^2 - xy + y^2)(x + 1)
