(-b^2+c^2) (-4 a^20+15 a^18 (b^2+c^2)-9 a^16 (b^4+6 b^2 c^2+c^4)+(b^2-c^2)^8 (3 b^4+5 b^2 c^2+3 c^4)+a^14 (-24 b^6+49 b^4 c^2+49 b^2 c^4-24 c^6)+a^12 (71 b^6 c^2-82 b^4 c^4+71 b^2 c^6)-a^2 (b^2-c^2)^4 (5 b^10-44 b^8 c^2-33 b^6 c^4-33 b^4 c^6-44 b^2 c^8+5 c^10)+21 a^10 (6 b^10-11 b^8 c^2+2 b^6 c^4+2 b^4 c^6-11 b^2 c^8+6 c^10)+a^8 (-210 b^12+265 b^10 c^2+43 b^8 c^4-116 b^6 c^6+43 b^4 c^8+265 b^2 c^10-210 c^12)-3 a^4 (b^2-c^2)^2 (12 b^12+37 b^10 c^2-17 b^8 c^4+5 b^6 c^6-17 b^4 c^8+37 b^2 c^10+12 c^12)+a^6 (144 b^14-121 b^12 c^2-154 b^10 c^4+122 b^8 c^6+122 b^6 c^8-154 b^4 c^10-121 b^2 c^12+144 c^14)) x+(a^2-c^2) (3 a^20-a^18 (5 b^2+19 c^2)+a^16 (-36 b^4+64 b^2 c^2+47 c^4)+a^14 (144 b^6-39 b^4 c^2-173 b^2 c^4-52 c^6)-(b^2-c^2)^7 (4 b^6+13 b^4 c^2+16 b^2 c^4+3 c^6)+a^12 (-210 b^8-121 b^6 c^2+237 b^4 c^4+185 b^2 c^6+14 c^8)+a^2 (b^2-c^2)^5 (15 b^8+21 b^6 c^2+4 b^4 c^4+31 b^2 c^6+19 c^8)+a^10 (126 b^10+265 b^8 c^2-154 b^6 c^4-228 b^4 c^6-71 b^2 c^8+14 c^10)-a^4 (b^2-c^2)^3 (9 b^10-22 b^8 c^2-11 b^6 c^4-32 b^2 c^8+47 c^10)+a^8 (-231 b^10 c^2+43 b^8 c^4+122 b^6 c^6+132 b^4 c^8-71 b^2 c^10+14 c^12)+a^6 (-24 b^14+71 b^12 c^2+42 b^10 c^4-116 b^8 c^6+122 b^6 c^8-228 b^4 c^10+185 b^2 c^12-52 c^14)) y+(-a^2+b^2) (3 a^20-a^18 (19 b^2+5 c^2)+a^16 (47 b^4+64 b^2 c^2-36 c^4)-a^14 (52 b^6+173 b^4 c^2+39 b^2 c^4-144 c^6)+(b^2-c^2)^7 (3 b^6+16 b^4 c^2+13 b^2 c^4+4 c^6)+a^12 (14 b^8+185 b^6 c^2+237 b^4 c^4-121 b^2 c^6-210 c^8)-a^2 (b^2-c^2)^5 (19 b^8+31 b^6 c^2+4 b^4 c^4+21 b^2 c^6+15 c^8)+a^8 b^2 (14 b^10-71 b^8 c^2+132 b^6 c^4+122 b^4 c^6+43 b^2 c^8-231 c^10)+a^4 (b^2-c^2)^3 (47 b^10-32 b^8 c^2-11 b^4 c^6-22 b^2 c^8+9 c^10)+a^10 (14 b^10-71 b^8 c^2-228 b^6 c^4-154 b^4 c^6+265 b^2 c^8+126 c^10)+a^6 (-52 b^14+185 b^12 c^2-228 b^10 c^4+122 b^8 c^6-116 b^6 c^8+42 b^4 c^10+71 b^2 c^12-24 c^14)) z = 0