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19 December, 04:00

What are the real zeros in f (x) = x^3+8

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Answers (2)
  1. 19 December, 04:14
    0
    X = - 2

    Step-by-step explanation:

    X^3 + 8 = 0

    X^3 = - 8

    X = - 8 ^ (1/3)

    X = - 2
  2. 19 December, 04:24
    0
    -2

    Step-by-step explanation:

    f (x) = x^3+8

    Set it equal to 0

    0 = x^2 + 8

    Subtract 8 from each side

    -8 = x^3+8-8

    -8 = x^3

    Take the cube root of each side

    -8 ^ 1/3 = x^3 ^ 1/3

    -2 = x

    The only real root is - 2
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