Question

Determine whether the polynomial is a difference of squares and if it is, factor it.

y^2 – 225



is a difference of squares: (y + 15)^2

is a difference of squares: (y – 15)(y + 15)

is not a difference of squares

is a difference of squares: (y – 15)^2

Answer 1

(y-15)(y+15) if you do (y+15)^2, then that'll be y^2 + 225