factor completely
x^2+15x+50
(x - 5)(x - 10)
(x + 5)(x + 10)
(x - 5)(x + 10)
(x + 25)(x + 2)
x^2+15x+50
(x - 5)(x - 10)
(x + 5)(x + 10)
(x - 5)(x + 10)
(x + 25)(x + 2)