Which of the following are equivalent to (x+y)3(x + y)^3(x+y)3?
x3+y3x^3 + y^3x3+y3
x3+3x2y+3xy2+y3x^3 + 3x^2y + 3xy^2 + y^3x3+3x2y+3xy2+y3
(x+y)(x2+2xy+y2)(x + y)(x^2 + 2xy + y^2)(x+y)(x2+2xy+y2)
x3+x2y+xy2+y3x^3 + x^2y + xy^2 + y^3x3+x2y+xy2+y3