Rewrite as .

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

Add and .

Add and .

Subtract from .

Factor (x-3)^2-9

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# Factor (x-3)^2-9

Rewrite as .

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

Add and .

Add and .

Subtract from .

Factor (x-3)^2-9