Rico thinks it’s a perfect square trinomial. teresa says it’s the difference of two squares. who is correct

Write an explicit formula that represents the sequence defined by the following recursive formula:

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section