Data:9 2/Jones Polynomial

Failed to parse (syntax error): {\displaystyle q^{-1} - q^{-2} +2 q^{-3} -2 q^{-4} +2 q^{-5} -2 q^{-6} +2 q^{-7} - q^{-8} + q^{-9} - q^{-10} }}