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18 July, 12:48

Which of the following represents the zeros of f (x) = x3 - 5x2 - 3x + 15?

a. 5, √3, - √3

b.-5, - √3, - √3

c. 5, - √3, - √3

d-5, √3, √3

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Answers (1)
  1. 18 July, 13:22
    0
    Hello,

    Answer A

    x^3-5x²-3x+15=x^2 (x-5) - 3 (x-5)

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

    = (x-5) (x+√3) (x-√3)
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