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K2-5k+6 in quadratic form

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Answers (1)
  1. 26 May, 14:29
    0
    K² - 5k + 6 = 0

    k = - (-5) ± √ ((-5) ² - 4 (1) (6))

    2 (1)

    k = 5 ± √ (25 - 24)

    2

    k = 5 ± √ (1)

    2

    k = 5 ± 1

    2

    k = 5 + 1 or k = 5 - 1

    2 2

    k = 6 or k = 4

    2 2

    k = 3 or k = 2

    Solution Set: {3, 2}
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