////////////////////////////////////////////////////////////////
//
//     http://www.planetquantum.com/Solve/Level1/Den13/Page13.txt
//
////////////////////////////////////////////////////////////////

Generator:
(C (^ 3 1/2) (^ 5 1/2) 6 7 4)

Problem:
(= (cdot #[[1732 508 756 8877 2935 2744 6341]
           [5058 7236 6942 8052 5381 380 6280]
           [5580 6979 4519 3301 6908 8000 3708]
           [1146 1867 5724 8575 6756 2614 1415]
           [4067 302 9969 9450 9499 8952 4788]
           [1165 5512 943 7364 8528 932 3190]]
         #[[x_1] [x_2] [x_3] [x_4] [x_5] [x_6] [x_7]])
   #[[2236] [679] [7749] [9789] [6964] [917]])

Solution:
(= #[[x_1] [x_2] [x_3] [x_4] [x_5] [x_6] [x_7]]
   #[[-3358833945702959611187]
     [1228420948681104187354]
     [985644917333586683408]
     [-461930287902424449717]
     [-610804619451454673991]
     [846214279446105020073]
     [1264716879912168856642]])