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29 April, 09:01

Factor x3 + x2 + x + 1 over the complex numbers.

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  1. 29 April, 09:09
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    (x+1) (x+i) (x-i)

    Step-by-step explanation:

    x3 + x2 + x + 1

    Group factor: x2 (x+1) + (x+1)

    = (x+1) (x2 + 1) = (x+1) (x+i) (x-i)
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