The expression is 

 To simplify the expression following order of operations to performed:

1.      Evaluate the expressions inside grouping symbols.

2.      Evaluate powers

3.      Multiply and/or Divide in order from left to right.

4.      Add and/or Subtract in order from left to right.

According order of operations inside the grouping symbols should be evaluated first.

So, the first operation is evaluating expression within the parenthesis.

                                (Divide: )

Next operation is addition. \ \

                                       (Add: )

Next operation is subtraction.

                                                   (Subtract: )

The value of the expression is 41.