3 x 81 1 2 July 8, 2019 16 32 64 128 3 5x 2 81 x 1 5 x 3 2 1 81 81 1 4 x 9 3 2 3x x 1 2 3 81 3 √ 81 x 1 27 3 x 81 )( x 2 1 )= 0 3 x 2y 1 81 27 2 3 x 81 1 4 3 2x 1 81 x 2 3 x 1 2 mũ 3 81 Log x 81 1 − 3 2 81 x 1 3 4x 246 81 x 3 n 1 27 9 * 81 x 1 27 x 3 Hasil dari 27 2 3 x 81 1 4