2x 4 5x 2 1 0 July 8, 2019 16 32 64 128 2x 4 7x 3 3x 2 5x 1 0 3x 5 8x 4 2x 3 5x 2 2x 1 0 X 4 2x 3 5x 2 2x 1 0 5x 2 5 4 x 2 2x 1 )= 0 2x 4 5x 2 x 1 0 Cho pt 2x 4 5x 2 x 1 0 Cho phương trình 2x 4 5x 2 x 1 0 2x 7 5x 2 2x 1 5x 4 0