6) PIVOTING OPERATION (5 MARKS) A simplex tableau is shown below. x1 x2 x3 s1 s2 s3 Basis cB 5 2 8 0 0 0 RHS s1 0 3 6 0 1 0 -9 126 s2 0 -5/2 -1/2 0 0 1 -9/2 45 x3 8 1/2 1/2 1 0 0 1/2 18 zj 4 4 8 0 0 4 144 cj - zj 1 -2 0 0 0 -4 A prior analysis has already shown that the variable entering the base is x1 and that the variable leaving the base is x3. Write down the next simplex tableau obtained by performing one iteration of the simplex method. Notice: You get 1 mark for correct basis of the next tableau. You get 1 mark for correct RHS of the next tableau. You get 3 marks for correct values of the body of the matrix of the next tableau