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2 October, 23:44

If x=4, calculate the value of: x2 + 2x

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Answers (2)
  1. 3 October, 00:43
    0
    We simply need to plug in x = 4 into x² + 2x

    So plugging in x = 4, we get:

    4² + 2 (4)

    Simplifying it, we get:

    16 + 2 (4)

    16 + 8

    24

    When x = 4, x² + 2x will equal 24.
  2. 3 October, 01:14
    0
    If x = 4

    x² + 2x = 24

    Substitute x by its value

    4² + 2 (4)

    16 + 8 = 24
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