Question

8 + (7 + 1) (exp) 2 ÷ 4 ⋅( 1/2) (exp) 4

Answer 1

Your answer is 264, hope it helps!
Steps: 

8+(7+)^2/ 4(1/2)^4
=8+8^2/ 4(1/2)^4
=8+64/ 4(1/2)^4
=8+64/ 1/4
=8 + 256
=264