-2 - (2/(11 + 5 Sqrt[5]))^(1/3) + (1/2 (11 + 5 Sqrt[5]))^(
1/3) - (2/(9 + Sqrt[85]))^(1/3) + (1/2 (9 + Sqrt[85]))^(1/3)
没有整数解,不止一组解
-2 - (2/(11 + 5 Sqrt[5]))^(1/3) + (1/2 (11 + 5 Sqrt[5]))^(
1/3) - (2/(9 + Sqrt[85]))^(1/3) + (1/2 (9 + Sqrt[85]))^(1/3)
没有整数解,不止一组解