$\"\"$

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The expression is $\"\"$ .

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Complete the factor.

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$\"\"$ (Original expression)

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$\"\"$ (Group to find a GCF)

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

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$\"\"$ (Distributive property: $\"\"$ )

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$\"\"$ (Difference of cubes)

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$\"\"$ (Write as quadratic form)

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$\"\"$ (Let $\"\"$ )

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$\"\"$ (Factors)

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$\"\"$ (Substitute $\"\"$ and $\"\"$ )

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$\"\"$ (Difference of cubes)

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$\"\"$ (Simplify)

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The simplified expression is $\"\"$ . $\"\"$

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The factor form is $\"\"$ .