Blog literacki, portal erotyczny - seks i humor nie z tej ziemi
(1+((x1+x2+1)^2)*(19-14*x1+3*x1^2-14*x2+6*x1*x2 +3*x2^2))*(30+((2*x1-3*x2)^2)*(18-32*x1+12*x1^2+48*x2-36*x1*x2+27*x2^2))
(1+((x1+x2+1)^2)*(19-14*x1+3*x1^2-14*x2+6*x1*x2 +3*x2^2))*(30+((2*x1-3*x2)^2)*(18-32*x1+12*x1^2+48*x2-36*x1*x2+27*x2^2))