x_1, x_2, 
-6*(7*x_1^2-6*x_1-7)*(7*x_1^2+22*x_1+9)*x_2*(93800*x_1^19+2915320*x_1^18+38743900*x_1^17+281529512*x_1^16+1134907522*x_1^15+1632306182*x_1^14-8176894521*x_1^13-60005746650*x_1^12-201061982452*x_1^11-433580771090*x_1^10-628566624325*x_1^9-543740143130*x_1^8-49094298667*x_1^7+599129215513*x_1^6+873643389120*x_1^5+569781980184*x_1^4+88094815781*x_1^3-122575900559*x_1^2-81077801490*x_1-15991740450)
27*(7*x_1^2-6*x_1-7)*(7*x_1^2+22*x_1+9)*x_1*x_2*(896*x_1^16+42688*x_1^15+926272*x_1^14+12124544*x_1^13+106878048*x_1^12+670599312*x_1^11+3085241936*x_1^10+10557031264*x_1^9+26929664808*x_1^8+50710981956*x_1^7+68623681852*x_1^6+62756748776*x_1^5+32584465274*x_1^4+1569487843*x_1^3-9765099309*x_1^2-5881136310*x_1-1170127350)
