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4 August, 00:16

C * c-5c-24=0

Solve this quadratic equation by graphing ... But first how do you find the ordinates

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Answers (1)
  1. 4 August, 00:21
    0
    C² - 5c - 24 = 0

    c = - (-5) + / - √ ((-5) ² - 4 (1) (-24))

    2 (1)

    c = 5 + / - √ (25 + 96)

    2

    c = 5 + / - √ (121)

    2

    c = 5 + / - 11

    2

    c = 5 + 11 c = 5 - 11

    2 2

    c = 16 c = - 6

    2 2

    c = 8 c = - 3
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