Q145 :

a b^3 c^5 x^3 y+b^4 c^5 x^3 y-b^3 c^6 x^3 y+a^3 b c^5 x^2 y^2-a b^3 c^5 x^2 y^2-a^2 b c^6 x^2 y^2+a b^2 c^6 x^2 y^2-a^4 c^5 x y^3-a^3 b c^5 x y^3+a^3 c^6 x y^3-a b^5 c^3 x^3 z+b^6 c^3 x^3 z-b^5 c^4 x^3 z+a^2 b^4 c^3 x^2 y z-a b^5 c^3 x^2 y z-a^2 b^3 c^4 x^2 y z+a b^3 c^5 x^2 y z+a^5 b c^3 x y^2 z-a^4 b^2 c^3 x y^2 z+a^3 b^2 c^4 x y^2 z-a^3 b c^5 x y^2 z-a^6 c^3 y^3 z+a^5 b c^3 y^3 z+a^5 c^4 y^3 z-a^3 b^5 c x^2 z^2+a^2 b^6 c x^2 z^2-a b^6 c^2 x^2 z^2+a b^5 c^3 x^2 z^2-a^5 b^3 c x y z^2+a^3 b^5 c x y z^2+a^4 b^3 c^2 x y z^2-a^3 b^4 c^2 x y z^2-a^6 b^2 c y^2 z^2+a^5 b^3 c y^2 z^2+a^6 b c^2 y^2 z^2-a^5 b c^3 y^2 z^2+a^4 b^5 x z^3-a^3 b^6 x z^3+a^3 b^5 c x z^3+a^6 b^3 y z^3-a^5 b^4 y z^3-a^5 b^3 c y z^3=0