$\"\"$

The given function $\"\"$

The value of function f(2)

Substitute value f(2) in above function.

$\"\"$ (Substitute x = 2)

= 12 + 7 (Multiply: $\"\"$ )

= 19 (Add: 12 + 7 = 19) $\"\"$

The given function $\"\"$ .

The value of function $\"\"$

Substitute value $\"\"$ in above function.

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

= 4 $\"\"$ 4 (Evaluate power: $\"\"$ )

= 0 (Additive inverse property: 4 $\"\"$ 4 = 0) $\"\"$

$\"\"$

= 19 (Additive identity property: 19 - 0) $\"\"$

The value of $\"\"$ .