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Solve the following integer linear program using branch-and-bound with Best-First Search. Branch on 21 first. Show the branch-and-bound tree. You may solve the LP sub-problems

Solve the following integer linear program using branch-and-bound with Best-First Search. Branch on 21 first. Show the branch-and-bound tree. You may solve the LP sub-problems by any means.
min 3x14x2+5x3
s.t. 1+2+3?5
T32x22
21+4x24
T1, T2, T3 EZ,>0

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