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22 May, 15:02

If x = - 2, calculate the value of: xcubed + xsquared

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Answers (2)
  1. 22 May, 16:46
    0
    X cubed = - 8

    -2 x - 2 = 4

    4 x - 2 = - 8

    x squared = 4

    -2 x - 2 = 4

    -8 + 4 = - 4

    xcubed + xsquared = - 4
  2. 22 May, 18:51
    0
    -2*-2*-2 = ?

    -2*-2 = ?

    -8+4 = - 4

    answer is - 4
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