K334 :

a^5*c*x^2*y - a^4*b*c*x^2*y - 2*a^3*b^2*c*x^2*y + 2*a^2*b^3*c*x^2*y + a*b^4*c*x^2*y - b^5*c*x^2*y + 2*a^3*b*c^2*x^2*y - 2*a*b^3*c^2*x^2*y - 2*a^3*c^3*x^2*y + 2*a*b^2*c^3*x^2*y - 2*a*b*c^4*x^2*y + a*c^5*x^2*y + b*c^5*x^2*y + a^5*c*x*y^2 - a^4*b*c*x*y^2 - 2*a^3*b^2*c*x*y^2 + 2*a^2*b^3*c*x*y^2 + a*b^4*c*x*y^2 - b^5*c*x*y^2 + 2*a^3*b*c^2*x*y^2 - 2*a*b^3*c^2*x*y^2 - 2*a^2*b*c^3*x*y^2 + 2*b^3*c^3*x*y^2 + 2*a*b*c^4*x*y^2 - a*c^5*x*y^2 - b*c^5*x*y^2 - a^5*b*x^2*z + 2*a^3*b^3*x^2*z - a*b^5*x^2*z + a^4*b*c*x^2*z - 2*a^3*b^2*c*x^2*z + 2*a*b^4*c*x^2*z - b^5*c*x^2*z + 2*a^3*b*c^2*x^2*z - 2*a*b^3*c^2*x^2*z - 2*a^2*b*c^3*x^2*z + 2*a*b^2*c^3*x^2*z - a*b*c^4*x^2*z + b*c^5*x^2*z + a^5*b*y^2*z - 2*a^3*b^3*y^2*z + a*b^5*y^2*z + a^5*c*y^2*z - 2*a^4*b*c*y^2*z + 2*a^2*b^3*c*y^2*z - a*b^4*c*y^2*z + 2*a^3*b*c^2*y^2*z - 2*a*b^3*c^2*y^2*z - 2*a^2*b*c^3*y^2*z + 2*a*b^2*c^3*y^2*z + a*b*c^4*y^2*z - a*c^5*y^2*z - a^5*b*x*z^2 + a*b^5*x*z^2 + a^4*b*c*x*z^2 - 2*a^3*b^2*c*x*z^2 + 2*a^2*b^3*c*x*z^2 - 2*a*b^4*c*x*z^2 + b^5*c*x*z^2 + 2*a^3*b*c^2*x*z^2 - 2*a^2*b*c^3*x*z^2 + 2*a*b^2*c^3*x*z^2 - 2*b^3*c^3*x*z^2 - a*b*c^4*x*z^2 + b*c^5*x*z^2 - a^5*b*y*z^2 + a*b^5*y*z^2 - a^5*c*y*z^2 + 2*a^4*b*c*y*z^2 - 2*a^3*b^2*c*y*z^2 + 2*a^2*b^3*c*y*z^2 - a*b^4*c*y*z^2 - 2*a*b^3*c^2*y*z^2 + 2*a^3*c^3*y*z^2 - 2*a^2*b*c^3*y*z^2 + 2*a*b^2*c^3*y*z^2 + a*b*c^4*y*z^2 - a*c^5*y*z^2 = 0