(x + 2)^2 - 9 = (x + 2 - 3)(x + 2 + 3)(x - 1)(x + 5), x^2 + 4x + 4 - 9 = (x + 2)^2 - 9 = (x + 2 - 3)(x + 2 + 3)(x - 1)(x + 5)

1)  (x + 2)^2 - 9 = (x + 2 - 3)(x + 2 + 3)(x - 1)(x + 5)
2)  x^2 + 4x + 4 - 9 = (x + 2)^2 - 9 = (x + 2 - 3)(x + 2 + 3)(x - 1)(x + 5)
3)  x^2 + 4x - 5 = x^2 + 4x + 4 - 9 = (x + 2)^2 - 9 = (x + 2 - 3)(x + 2 + 3 )(x - 1)(x + 5)