(20 points) Use the Big M method to solve the following LP (M-100) Min z X: +*2 Subject to: Xy + x2 - 2 2xy + 2x2 - 4 X1, X 20 Use the following tables to answer this question. The tables provide you with part of the solution. Your task is to complete the spaces with no values in the table using the Big M method. Basic xi RI R2 x2 -1 1 2 RHS 0 2 R1 R2 1 2 1 0 0 1 Basic x1 X2 RI R2 RHS 2 R1 R2 1 2 1 2 1 0 0 1 2 4 Basic 1 K2 R1 R2 RHS Ratio RI R2 1 2 1 2 1 0 0 1 2 4 12 enters Rl leaves the basics Basic A1 R1 R2 ANS