Write the perfect square trinomial that factors as(3w+ y)2(3w + y)2

The expression is given
[tex](3w+y)^2[/tex]To determine the perfect squares trinomial , expand the given expression.
[tex](3w+y)^2=0=9w^2+y^2+6wy[/tex]Hence the answer is
[tex]9w^2+6wy+y^2[/tex]