Answer: 10
Explanation:
First, inside the parentheses:
(
18
÷
6
+
3
)
2
÷
2
−
8
(18÷6+3)
2
÷2−8
(
3
+
3
)
2
÷
2
−
8
(3+3)
2
÷2−8
(
6
)
2
÷
2
−
8
(6)
2
÷2−8
36
÷
2
−
8
36÷2−8
Next, division:
36
÷
2
−
8
36÷2−8
18
−
8
18−8
Finally, subtraction:
18
−
8
18−8
10
10
So, the simplified expression is
10
10.