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21 August, 18:16

Solve by completing the square

-x^2+8x-6=0

+2
Answers (1)
  1. 21 August, 20:15
    0
    -x² + 8x - 6 = 0

    x = - (8) + / - √ ((8) ² - 4 (-1) (-6))

    2 (-1)

    x = - 8 + / - √ (64 - 20)

    -2

    x = - 8 + / - √ (44)

    -2

    x = - 8 + / - 2√ (11)

    -2

    x = - 8 + 2√ (11) x = - 8 - 2√ (11)

    -2 - 2

    x = 4 - √ (11) x = - 8 + √ (11)
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