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How to factor a^4-2a^2-35

User Redeemefy
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1 Answer

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a⁴ - 2a² - 35
a⁴ + 5a² - 7a² - 35
a²(a²) + a²(5) - 7(a²) - 7(5)
a²(a² + 5) - 7(a² + 5)
(a² - 7)(a² + 5)
User HaMzox
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