18 -36 4 -36 0 18 -1.5 -36 0 84 -2 6 -4 0 10 84 4 160 2 -16 -6 4 0 160 detx5 12 12 -1 0 100 -11334496 6 -8 24 -4 -204 18 -1.5 4 -36 -36 0 10 -2 6 84 4 0 2 -16 160 X4= -31.56321 x5= 18.47622