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# How do I factor y^10n-y^5n-12?

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- JohnathanLv 72 months agoFavorite Answer
Using simpler exponents, you know y^2 - y - 12 = (y + 3)(y - 4). That means you can factor as such:

y^(10n) - y^(5n) - 12 = (y^(5n) + 3)(y^(5n) - 4).

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- Φ² = Φ+1Lv 72 months ago
y^(10n) - y^(5n) - 12

= (y^(5n))^2 - y^(5n) - 12

= (y^(5n) - 4)(y^(5n) + 3)

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