19 5 4 3 2 July 8, 2019 16 32 64 128 3 2x 4 )- 5 19 19 20 x 8 5 3 4 19 20 y 8 5 3 4 19 5 x 23 3 1 4 3 (- 4 2 )+ 2x 5 =- 19 19 5 √ 2 4 √ 3
