$\"\"$

\

The expression is $\"\"$

\

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

\

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

\

$\"\"$ (Multiply: $\"\"$ )

\

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

\

$\"\"$ (Divide: $\"\"$ ) $\"\"$

\

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

\