solve using dual simplex method

2. Consider the problem Max Z-3x + x2 + 4x3 31. x + 3x: +SI -25 3x, +4x-5x, 20 4.2.x, 20 The corresponding final set of equations yielding the optimal solution is (o) (0) 2+2x+* ,-! 1 1 1 (2) ******* **- a) Identify the optimal solution from this set of equations. b) Construct the dual problem. c) Identify the optimal solution for the dual problem from the above set of equations. Verify this solution by solving the dual problem graphically