Factor 81x^4-81

Math
Factor out of .
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Factor out of .
Factor out of .
Factor out of .
Rewrite as .
Rewrite as .
Since both terms are perfect squares, factor using the difference of squares formula, where and .
Factor.
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Simplify.
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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.
Remove unnecessary parentheses.
Factor 81x^4-81

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