5 12 √ x 1 6 1 3 July 8, 2019 16 32 64 128 5 12 căn bậc x 1 6 1 3 (- 5 6 * x 7 12 (- 1 3 * x 1 4 3x 7 5 x 1 6 2x 2 12 1 √ 5 5 12 + 1 6 5 6 x- 1 12 x+ 1 2 x=3 3 4
