Factor: x3+27x^3 + 27x3+27.
(x+3)(x2−3x+9)(x+3)(x^2-3x+9)(x+3)(x2−3x+9)
(x+3)3(x+3)^3(x+3)3
(x−3)(x2+3x+9)(x-3)(x^2+3x+9)(x−3)(x2+3x+9)
(x+27)(x2−1)(x+27)(x^2-1)(x+27)(x2−1)