9 2x 1 27 July 8, 2019 16 32 64 128 9 2x 1 27 x 9 2x 1 27 x 2 9 2x 1 27 3 9 2x 1 )= 27 x 4 9 2x 1 27 4 3x 9 2x 1 27 x 3 9 2x 5 1 27 9 * 81 1 2x 27 2 x 9 mũ 2x 1 27 mũ 3 9 2x 1 81 27 x Solve 9 2x 1 )= 27 x 4 3 * 3 5x 9 2x 1 27 3 2x 1 9 27 find x 9 3 =( 1 27 2x 10 9 x 1 27 2x 6
