$\"\"$

\

The expression is $\"\"$ .

\

The value are $\"\"$ , $\"\"$ and $\"\"$ .

\

$\"\"$ (Substitute $\"\"$ , $\"\"$ and $\"\"$ )

\

$\"\"$ (Multiply)

\

$\"\"$ (Add: $\"\"$ )

\

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

\

$\"\"$ (Simplify)

\

Therefore, the value of expression is $\"\"$ .

\

$\"\"$

\

$\"\"$ .