X 4 12x 2 27 July 8, 2019 16 32 64 128 X 4 12x 2 27 0 X 4 12x 2 27 factored X 4 2x 3 12x 2 18x 27 4x 4 12x 3 x 2 27x 18 4 x 2 7 )+ 27 =- 12x 2 X mũ 3 trừ 4 x mũ 2 12x 27 12 x 2 4 12 x 4 = 12 x 12 x4
