Factor x2−14x+49x^2 - 14x + 49x2−14x+49.
(x−7)2(x - 7)^2(x−7)2
(x−7)(x+7)(x - 7)(x + 7)(x−7)(x+7)
(x−1)(x−49)(x - 1)(x - 49)(x−1)(x−49)
(x+7)2(x + 7)^2(x+7)2