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27 September, 13:37

Which of the following are roots of the polynomial function below?

2x^3-5x^2+2x+1

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Answers (1)
  1. 27 September, 15:32
    0
    x=1, 3±√17/4

    Step-by-step explanation:

    2x^3-5x^2+2x+1 = (x-1) (2x^2-3x-1)

    (x-1) (2x^2-3x-1) = 0

    x-1 = 0 → x=1

    2x^2-3x-1=0 → x = 3±√17/4
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