Question

6 + 4[5 - 3(7 + 2) - 6] =

Answer 1

6+4[5-3(7+2)-6]
6+4[5-3(8)-6]
6+4[2(8)-6]
6+4[16-6] 
6+4[14]
10[14]
140

Answer 2

$6 + 4[5 - 3(7 + 2) - 6] = 6 + 4[5 - 3 \cdot 9 - 6] = 6 + 4[5 - 27 - 6] = \\\\=6+4\cdot (-28) =6-112=-106$