$\"\"$

The polynomial function is $\"\"$ .

The leading coefficient ( $\"\"$ ) is 1 and constant term is 16.

The possible rational zeros : $\"\"$ .

Observe the graph of the function :

The zeros are $\"\"$ and $\"\"$ .

The zeros are in the list of possible zeros of f(x). $\"\"$

The possible rational zeros are $\"\"$ and $\"\"$ .