$\"\"$

The trinomial expression is $\"\"$ .

The trinomial compare to general trinomial expression: $\"\"$ , So a = 8, b = $\"\"$ 19, c = 9.

To find two numbers with a sum of $\"\"$ 19 and a product of $\"\"$ .

This trinomial list of the factors of 72, and look for the pair of factors is a sum of $\"\"$ 19.

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Factors of 72

Sum of factor

$\"\"$ 8, $\"\"$ 9

$\"\"$ 6, $\"\"$ 12 \ \

$\"\"$ 2, $\"\"$ 36

$\"\"$ 17

$\"\"$ 18

$\"\"$ 38

$\"\"$

There are no factors with a sum of $\"\"$ 19.

Therefore, $\"\"$ cannot be factored using integers.

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

The trinomial is a prime.

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