Step-by-step explanation:
[tex] {n}^{4} - 1 \\ = ( {n}^{2})^{2} - 1 \\ = ( {n}^{2} + 1)( {n}^{2} - 1)\\= ( {n}^{2} + 1)( {n} + 1)( {n} - 1)[/tex]
Correct Answer: (n^2 + 1) (n - 1) (n + 1) or Option C
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