The expression is.

To simplify the expression follow the order of operations: (PEMDAS)

1.     Evaluate the expressions inside Brackets/Parenthesis (P).

2.     Evaluate Powers/Exponents (E).

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

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

A simple technique for remembering the order pf operations is turned into phrase

“Please Excuse My Dear Aunty Sally”

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

First operation is evaluating expression within the parentheses.

                       (Evaluate power: )

                          (Add: )

Next operation is subtraction.

                                    (Subtract:)

The value of the expression is 2.