Problem 5. Consider the following LP. max 2x1 + xX2 X1 - x2 < 10 21 2 < 40 X1, X2 2 0 1) Use the graphical method to solve this LP. (5 points) 2) Solve this LP by the simplex method, starting at extreme point (x1, x2) = (0,0) in the original LP. (10 points)