Explicação passo-a-passo:
a)
2 1
0 4
8 - 0
D = 8
b)
3 1
4 2
6 -4
D = 2
c)
1 3
-1 3
3 + 3
D = 6
d)
-5 1
2 3
-15 + 2
D = -17
e)
3 2 2
1 -2 7
0 4 5
D = -30 + 0 + 8 + 0 - 84 - 10
D = -116
f)
3 -5 7
4 0 -4
-2 2 5
D = 0 - 40 + 56 + 0 + 24 + 100
D = 140
g)
2 1 -3
-4 4 0
0 1 2
D = 16 + 0 + 12 + 0 + 0 + 8
D = 36
