////////////////////////////////////////////////////////////////
//
//     http://www.planetquantum.com/Solve/Level1/Den13/Page45.txt
//
////////////////////////////////////////////////////////////////

Generator:
(C (^ 2 1/3) (^ 7 1/3) 7 8 2)

Problem:
(= (cdot #[[12 59 92 10 49 89 48 73]
           [16 47 67 21 6 7 27 82]
           [28 35 5 70 25 14 64 70]
           [15 7 98 0 81 97 51 12]
           [15 52 99 67 65 13 95 94]
           [83 72 93 96 56 24 36 25]
           [50 94 15 43 10 25 60 35]]
         #[[x_1] [x_2] [x_3] [x_4] [x_5] [x_6] [x_7] [x_8]])
   #[[19] [12] [93] [11] [82] [77] [23]])

Solution:
(= #[[x_1] [x_2] [x_3] [x_4] [x_5] [x_6] [x_7] [x_8]]
   #[[898831041531]
     [494274780712]
     [-998656961238]
     [-1300588490665]
     [2483178625045]
     [-871721393882]
     [-906538808083]
     [881581575294]])