Factor: x2−2x−15x^2 - 2x - 15x2−2x−15.
(x−5)(x+3)(x-5)(x+3)(x−5)(x+3)
(x+5)(x−3)(x+5)(x-3)(x+5)(x−3)
(x−15)(x+1)(x-15)(x+1)(x−15)(x+1)
(x−3)(x−5)(x-3)(x-5)(x−3)(x−5)