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How to factor the binomial 16-81n^4 (I need to know really quick my paper is due in a hour)
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How to factor the binomial 16-81n^4 (I need to know really quick my paper is due in a hour)

User AlexeyDaryin
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1 Answer

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You can find that
16=4^2
81=9^2
so (4^2) - (9n^2)^2
= (4+9n^2)(4-9n^2)
User Sinix
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