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Use the branch and bound method to find the optimal solution to the following integer programming...

Use the branch and bound method to find the optimal solution to the following integer programming problem: maximize 7x1 + 3x2 subject to: 2 x1 + x2 < 9 3 x1 + 2x2 <13 x1, x2 > 0; x1, x2 integer
Instead of using EXCEL Solver to solve this problem directly as an integer programming problem, use EXCEL Solver to solve the LP problems at each branch, with the appropriate constraints added, according to the branch and bound algorithm. Be sure to draw a node and branch diagram to illustrate the procedure, showing the branches that are fathomed, noninteger variables selected, and the optimal solution

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