9 x 3 2 1 81 July 8, 2019 16 32 64 128 81 1 4 x 9 3 2 9 2x 1 81 x 2 3 x 3 x 2 9 x 1 810 3 x 2 9 x 1 810 0 9 x 1 3 y 2 81 Jika 3 x 2 9 x 1 810 9 x 3 mũ 2 x 1 phần 81 x 27 9 x 3 per 2 1 per 81 9 x 8 = 3 x 3 = 9