q 10 − q 8 + q 7 − q 6 + 3 q 5 − 2 q 4 + 3 q 3 − q 2 + q {\displaystyle q^{10}-q^{8}+q^{7}-q^{6}+3q^{5}-2q^{4}+3q^{3}-q^{2}+q}