K742 :

 a^6*b^4*c^2*x^3 - 3*a^4*b^6*c^2*x^3 + 3*a^2*b^8*c^2*x^3 - b^10*c^2*x^3 - 
     a^6*b^2*c^4*x^3 - a^2*b^6*c^4*x^3 + 2*b^8*c^4*x^3 + 3*a^4*b^2*c^6*x^3 + 
     a^2*b^4*c^6*x^3 - 3*a^2*b^2*c^8*x^3 - 2*b^4*c^8*x^3 + b^2*c^10*x^3 - 
     2*a^8*b^2*c^2*x^2*y + 7*a^6*b^4*c^2*x^2*y - 9*a^4*b^6*c^2*x^2*y + 
     5*a^2*b^8*c^2*x^2*y - b^10*c^2*x^2*y + a^6*b^2*c^4*x^2*y - 
     2*a^4*b^4*c^4*x^2*y - 3*a^2*b^6*c^4*x^2*y + 4*b^8*c^4*x^2*y + 
     3*a^4*b^2*c^6*x^2*y - a^2*b^4*c^6*x^2*y - 6*b^6*c^6*x^2*y - 
     a^2*b^2*c^8*x^2*y + 4*b^4*c^8*x^2*y - b^2*c^10*x^2*y + a^10*c^2*x*y^2 - 
     5*a^8*b^2*c^2*x*y^2 + 9*a^6*b^4*c^2*x*y^2 - 7*a^4*b^6*c^2*x*y^2 + 
     2*a^2*b^8*c^2*x*y^2 - 4*a^8*c^4*x*y^2 + 3*a^6*b^2*c^4*x*y^2 + 
     2*a^4*b^4*c^4*x*y^2 - a^2*b^6*c^4*x*y^2 + 6*a^6*c^6*x*y^2 + 
     a^4*b^2*c^6*x*y^2 - 3*a^2*b^4*c^6*x*y^2 - 4*a^4*c^8*x*y^2 + 
     a^2*b^2*c^8*x*y^2 + a^2*c^10*x*y^2 + a^10*c^2*y^3 - 3*a^8*b^2*c^2*y^3 + 
     3*a^6*b^4*c^2*y^3 - a^4*b^6*c^2*y^3 - 2*a^8*c^4*y^3 + a^6*b^2*c^4*y^3 + 
     a^2*b^6*c^4*y^3 - a^4*b^2*c^6*y^3 - 3*a^2*b^4*c^6*y^3 + 2*a^4*c^8*y^3 + 
     3*a^2*b^2*c^8*y^3 - a^2*c^10*y^3 + 2*a^8*b^2*c^2*x^2*z - a^6*b^4*c^2*x^2*z - 
     3*a^4*b^6*c^2*x^2*z + a^2*b^8*c^2*x^2*z + b^10*c^2*x^2*z - 
     7*a^6*b^2*c^4*x^2*z + 2*a^4*b^4*c^4*x^2*z + a^2*b^6*c^4*x^2*z - 
     4*b^8*c^4*x^2*z + 9*a^4*b^2*c^6*x^2*z + 3*a^2*b^4*c^6*x^2*z + 
     6*b^6*c^6*x^2*z - 5*a^2*b^2*c^8*x^2*z - 4*b^4*c^8*x^2*z + b^2*c^10*x^2*z - 
     a^10*c^2*y^2*z - a^8*b^2*c^2*y^2*z + 3*a^6*b^4*c^2*y^2*z + 
     a^4*b^6*c^2*y^2*z - 2*a^2*b^8*c^2*y^2*z + 4*a^8*c^4*y^2*z - 
     a^6*b^2*c^4*y^2*z - 2*a^4*b^4*c^4*y^2*z + 7*a^2*b^6*c^4*y^2*z - 
     6*a^6*c^6*y^2*z - 3*a^4*b^2*c^6*y^2*z - 9*a^2*b^4*c^6*y^2*z + 
     4*a^4*c^8*y^2*z + 5*a^2*b^2*c^8*y^2*z - a^2*c^10*y^2*z - a^10*b^2*x*z^2 + 
     4*a^8*b^4*x*z^2 - 6*a^6*b^6*x*z^2 + 4*a^4*b^8*x*z^2 - a^2*b^10*x*z^2 + 
     5*a^8*b^2*c^2*x*z^2 - 3*a^6*b^4*c^2*x*z^2 - a^4*b^6*c^2*x*z^2 - 
     a^2*b^8*c^2*x*z^2 - 9*a^6*b^2*c^4*x*z^2 - 2*a^4*b^4*c^4*x*z^2 + 
     3*a^2*b^6*c^4*x*z^2 + 7*a^4*b^2*c^6*x*z^2 + a^2*b^4*c^6*x*z^2 - 
     2*a^2*b^2*c^8*x*z^2 + a^10*b^2*y*z^2 - 4*a^8*b^4*y*z^2 + 6*a^6*b^6*y*z^2 - 
     4*a^4*b^8*y*z^2 + a^2*b^10*y*z^2 + a^8*b^2*c^2*y*z^2 + a^6*b^4*c^2*y*z^2 + 
     3*a^4*b^6*c^2*y*z^2 - 5*a^2*b^8*c^2*y*z^2 - 3*a^6*b^2*c^4*y*z^2 + 
     2*a^4*b^4*c^4*y*z^2 + 9*a^2*b^6*c^4*y*z^2 - a^4*b^2*c^6*y*z^2 - 
     7*a^2*b^4*c^6*y*z^2 + 2*a^2*b^2*c^8*y*z^2 - a^10*b^2*z^3 + 2*a^8*b^4*z^3 - 
     2*a^4*b^8*z^3 + a^2*b^10*z^3 + 3*a^8*b^2*c^2*z^3 - a^6*b^4*c^2*z^3 + 
     a^4*b^6*c^2*z^3 - 3*a^2*b^8*c^2*z^3 - 3*a^6*b^2*c^4*z^3 + 
     3*a^2*b^6*c^4*z^3 + a^4*b^2*c^6*z^3 - a^2*b^4*c^6*z^3=0