$\"\"$

The expression is $\"\"$ \ \

$\"\"$ (Substitute $\"\"$ )

$\"\"$

Apply the order of operations (PEDMAS). \ \

First operation is evaluating expression inside the parentheses.

$\"\"$ (Subract: $\"\"$ )

$\"\"$ (Evaluate power: $\"\"$ )

Next operation is subtraction.

$\"\"$ (Subtract: $\"\"$ )

$\"\"$

The value of the expression is $\"\"$ .