X 3 x 2 2x 1 5 0 July 8, 2019 16 32 64 128 X x 2 2x 1 5 2x 3 )( x 3 4 0 15 x 3 x 1 5 x 1 15 x 2 2x = 0 5 2x log x 2 4x 3 x 1 0 X 5 2x 4 3x 3 3x 2 2x 1 0 3 * 9 x 2 * 15 x 5 2x 1 0 9 x 2 x 5 3 x 9 2x 1 0 5 x 2 2 5 x 3 2 2x 1 5x 2 10x2 0 2x 2 3 )( x 3 2 x 1 3 x 5 6 )= 0 Phương trình 3 2x 2 x 3 x 1 )- 4.3 x 5 0