X 4 81 x 3 3x 2 9x 27 July 8, 2019 16 32 64 128 3) (x + 9)(x ^ 2 - 9x + 81) = - 7 - 4x + x ^ 3 4) x ^ 3 - 2x - 331 = (x ^ 2 - 11x + 121)(x + 11) 9 x 8 =