(b) Is the solution obtained in (a) optimum for the LP model? 4-24. Consider the following LP model: subject to Maximize z = 5x12x2+3x3 x1 + 5x2 + 2x3 ≤ b₁ x15x26x3≤ b₂ X1, X2, X3 ≥0 The following optimal tableau corresponds to specific values of b₁ and b₂: Basic X1 x2 X3 X4 X5 Solution Z 0 a 7 d e 15 X1 1 b 2 1 0 3 x5 0 C -8 -1 1 1 Determine the following: (a) The right-hand-side values, b₁ and b₂. (b) The optimal dual solution. (c) The elements a, b, c, d, and e. *4-25. The following is the optimal tableau for a maximization LP model with three (≤)