1 2 7 x 3 1 6 x 2 9 July 8, 2019 16 32 64 128 1/2 + 1/3 + 1/6 (3(x ^ 2 - 1))/7 - (x + 9)/6 = (x + 6)/3 (7 1-x) 3 6=1 1/2
