# Factor -s^3+3s^2+9s-27

Factor out the greatest common factor from each group.

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Group the first two terms and the last two terms.

Factor out the greatest common factor (GCF) from each group.

Factor the polynomial by factoring out the greatest common factor, .

Rewrite as .

Factor.

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Since both terms are perfect squares, factor using the difference of squares formula, where and .

Remove unnecessary parentheses.

Combine exponents.

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Factor out of .

Rewrite as .

Factor out of .

Rewrite as .

Raise to the power of .

Raise to the power of .

Use the power rule to combine exponents.

Add and .

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