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23 September, 00:44

If x=-1 work out the value 2x^2 - 6x

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Answers (2)
  1. 23 September, 01:00
    0
    8 would be the value if x = - 1

    Step-by-step explanation:

    2x² - 6x

    2 (-1) ² - 6 (-1)

    2 (1) + 6

    2 + 6

    8
  2. 23 September, 01:11
    0
    8

    Step-by-step explanation:

    2x^2 - 6x

    When x = - 1

    Plug in the value

    We have

    2 (-1) ^2 - 6 (-1)

    2 (-1 x - 1) - 6 x - 1

    2 x 1 + 6

    2 + 6

    8
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