1 5 6 11 x 28 July 8, 2019 16 32 64 128 7 1 5 6 11 x 28 x คือ 7 1 5 6 11 x 28 x = 1 5 6 11 (x) 28 x= 5 1/2 + 1 1/6 1 5 ∙ 62 – 24