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3 August, 19:19

Solve the eqaution using the quadratic formula 3x^2=2 (2x+1)

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Answers (2)
  1. 3 August, 19:52
    0
    the answer is x=1,-13

    Step-by-step explanation:

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  2. 3 August, 20:25
    0
    x = (2 ± √10) / 3

    Step-by-step explanation:

    3x²=2 (2x+1)

    3x² - 4x - 2 = 0 ... 2 roots: (-b ± √b² - 4ac) / 2a

    a = 3, b = - 4, c = - 2

    x = (( - (-4)) ± √ (-4) ² - 4x3x (-2)) / (2x3)

    = (4 ± √16 + 24) / 6

    = (4 ± √40) / 6

    = (4 ± 2√10) / 6

    = (2 ± √10) / 3
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