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Algebra Flashcards
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Formula
If x + 1/x = a, then x² + 1/x² = ?
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Answer
a² - 2
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Formula
If x + 1/x = a, then x³ + 1/x³ = ?
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Answer
a³ - 3a
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Formula
If a + b + c = 0, then a³ + b³ + c³ = ?
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Answer
3abc
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