$\"\"$

The polynomial is $\"\"$ .

To find the coefficients of the x-terms, the product of $\"\"$ or 15, and a sum of 8.

The two coefficients must be 3 and 5 since $\"\"$ .

$\"\"$ (Substitute 3x + 5x for 8x)

$\"\"$

$\"\"$ $\"\"$

The factor of the polynomial is $\"\"$ .