$\"\"$

The polynomial expression is $\"\"$ .

To find the G.C.F in above binomial expression $\"\"$ .

Factors of $\"\"$ : $\"\"$ 1, 2, 4, 8, 16.

Factors of $\"\"$ : 7, 49, h, h².

There is no common factors.

Thus, $\"\"$ is a prime polynomial. $\"\"$

The polynomial is a prime.