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14 December, 21:18

Complete the perfect square v^2-2v=3

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Answers (1)
  1. 14 December, 21:45
    0
    V² - 2v = 3

    v² - 2v - 3 = 0

    v = - (-2) + / - √ ((-2²) - 4 (1) (-3))

    2 (1)

    v = 2 + / - √ (4 + 12)

    2

    v = 2 + / - √16

    2

    v = 2 + / - 4

    2

    v = 2 + 4 v = 2 - 4

    2 2

    v = 6 v = - 2

    2 2

    v = 3 v = - 1
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