Starting from the initial trial solution (x1, x2) (0, 0), apply one iteration of the gradient search procedure to the following problem by hand:

Maximize f(x) 4x1 2x2 x1 2  x1 4  2x1x2  x2 2

.

To complete this iteration, approximately solve for t* by manually applying two iterations of the one-dimensional search procedure with initial bounds t 0, t 1.