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28 April, 18:34

Solve the quadratic equation by completing the square.

4x2 + 8x - 7 = 0

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Answers (1)
  1. 28 April, 22:22
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    Step-by-step explanation:

    4x² + 8x - 7 = 0

    4x² + 8x = 7

    x² + 2x = 7/4

    x² + 2x + 1 = 11/4

    (x + 1) ² = 11/4

    x + 1 = ±√ (11/4)

    x = - 1 ± √ (11/4)
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