(-2 2 + (6 3
-3 -2 5 -4
-3 1 ) 1 1)
= (-2+6 2+3
-3+5 -2-4
-3+1 1+1)
= (4 5
2 -6
-2 2)
-3 -2 5 -4
-3 1 ) 1 1)
-3+5 -2-4
-3+1 1+1)
= (4 5
2 -6
-2 2)