3/4−1/16t73/4 - 1/16t^73/4−1/16t7^2 = 3/4−1/16t73/4 - 1/16t^73/4−1/16t73/4−1/16t73/4 - 1/16t^73/4−1/16t7 = 9/16 - 3/16t^7 - 3/16t^7 + 1/256t^14= 9/16 - 3/8t^7 + 1/256t^14
3/4−1/16t73/4 - 1/16t^73/4−1/16t7^2 = 3/4−1/16t73/4 - 1/16t^73/4−1/16t73/4−1/16t73/4 - 1/16t^73/4−1/16t7 = 9/16 - 3/16t^7 - 3/16t^7 + 1/256t^14
= 9/16 - 3/8t^7 + 1/256t^14