5 6 x 1 13 July 8, 2019 16 32 64 128 5 + frac 1 6 x =- 13 7 x 6 )+ 5 x 1 )=- 13 6 x 1 )+ 5 13 − 2 7x 3 x 4 )+ 6 5 x 1 )- 13 Y 1 6 5 x 13 13. 2 x ^ 2 - 5/6x + 1/12 6 x 1 )+ 5 13 2 6x 13 2 5x 6 )= 5 x 1 )+ 2x 5 x 1/6 5×1 6 5 6 × 1 4