x_{pr} = (3.6, 3.4)
z_{pr} = 440
x_1 \leq 3 \quad \text{or} \quad x_1 \geq 4
x_{p2} = (3.75, 3)
z_{p2} = 435
x_{p3} = (3,4)
z_{p3} = 435
x_{p4} = (3,3)
z_{p4} = 435
x_{p5} = (4, 2.4)
z_{p5} = 428
x_{p6} = (4.16, 2)
z_{p6} = 422.8
Infactible
x_{p8} = (4, 2)
z_{p8} = 410
Terminal
x_{p9} = (5, 0)
z_{p9} = 400
by Adf
