K758 :

8*b^4*c^2*x^3 - 8*b^2*c^4*x^3 + a^4*c^2*x^2*y + 18*a^2*b^2*c^2*x^2*y - 
     11*b^4*c^2*x^2*y - 10*a^2*c^4*x^2*y + 2*b^2*c^4*x^2*y + 9*c^6*x^2*y + 
     11*a^4*c^2*x*y^2 - 18*a^2*b^2*c^2*x*y^2 - b^4*c^2*x*y^2 - 2*a^2*c^4*x*y^2 + 
     10*b^2*c^4*x*y^2 - 9*c^6*x*y^2 - 8*a^4*c^2*y^3 + 8*a^2*c^4*y^3 - 
     a^4*b^2*x^2*z + 10*a^2*b^4*x^2*z - 9*b^6*x^2*z - 18*a^2*b^2*c^2*x^2*z - 
     2*b^4*c^2*x^2*z + 11*b^2*c^4*x^2*z + 16*a^4*b^2*x*y*z - 16*a^2*b^4*x*y*z - 
     16*a^4*c^2*x*y*z + 16*b^4*c^2*x*y*z + 16*a^2*c^4*x*y*z - 16*b^2*c^4*x*y*z + 
     9*a^6*y^2*z - 10*a^4*b^2*y^2*z + a^2*b^4*y^2*z + 2*a^4*c^2*y^2*z + 
     18*a^2*b^2*c^2*y^2*z - 11*a^2*c^4*y^2*z - 11*a^4*b^2*x*z^2 + 
     2*a^2*b^4*x*z^2 + 9*b^6*x*z^2 + 18*a^2*b^2*c^2*x*z^2 - 10*b^4*c^2*x*z^2 + 
     b^2*c^4*x*z^2 - 9*a^6*y*z^2 - 2*a^4*b^2*y*z^2 + 11*a^2*b^4*y*z^2 + 
     10*a^4*c^2*y*z^2 - 18*a^2*b^2*c^2*y*z^2 - a^2*c^4*y*z^2 + 8*a^4*b^2*z^3 - 
     8*a^2*b^4*z^3=0