$\"\"$

The expression is $\"\"$ .

Complete the factor:

$\"\"$ (Original expression)

$\"\"$ (Factor out the GCF)

Since $\"\"$ and $\"\"$ are both perfect cubes, so can be factored using difference of cubes formula.

$\"\"$ (Difference of two cubes)

$\"\"$ (Simplify)

The simplified expression is $\"\"$ .

$\"\"$

The factor form is $\"\"$ .