Das Polynom P 1 = X 0 2 + 2 X 1 X 0 + X 1 2 {\displaystyle {}P_{1}=X_{0}^{2}+2X_{1}X_{0}+X_{1}^{2}} ist homogen, das Polynom P 2 = X 0 2 + 2 X 1 X 0 + X 1 2 + X 0 + 1 {\displaystyle {}P_{2}=X_{0}^{2}+2X_{1}X_{0}+X_{1}^{2}+X_{0}+1} jedoch nicht.
