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1 December, 18:07

If x3 = - 27, then what is x?

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  1. 1 December, 18:09
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    x = - 3

    Step-by-step explanation:

    x^3 = - 27

    Take the cube root of each side

    (x^3) ^1/3 = - 27 ^1/3

    x = - 3

    We know that - 3*-3*-3 = - 27 so this checks
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