$\"\"$ \ \

\

The expression is $\"\"$

\

$\"\"$ (Substitute y = 1)

\

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

\

$\"\"$ (Multiplicative identity property: $\"\"$ )

\

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

\

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

\