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29 September, 15:22

If x = - 2 calculate the value of: x cubed + 3

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Answers (2)
  1. 29 September, 17:37
    0
    -2^3 + 3

    The first step is to cube - 2. This means you do this:

    -2 * - 2 * - 2

    This is equal to - 8. Now, your equation looks like this:

    -8 + 3

    The answer to the above is - 5. Good luck!
  2. 29 September, 18:00
    0
    Xcubed=x^3=x*x*x

    if x=-2

    -2 cubed+3=-2*-2*-2+3=4*-2+3=-8+3=-5
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