Model hs28 Variables x[1] = -4 x[2] = 1 x[3] = 1 obj End Variables Equations x[1] + 2*x[2] + 3*x[3] = 1 ! best known objective = 0 obj = (x[1] + x[2])^2 + (x[2] + x[3])^2 End Equations End Model