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Algebra 2

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Look at the following polynomials and their factorizations:




In general, how can x^n-1 be factored. Show that this factorization works by multiplying the factors

  • Algebra 2 -

    It should be obvious from the examples that

    x^n - 1 =
    (x-1)[x^(n-1) + x^(n-2) .. x + 1]

    The series in the second factor stops when the last term => x^0 = 1

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