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12 December, 03:03

Which equation has the solutions x=1+or-square root of 5?

A) x2 + 2x + 4 = 0

B) x2 - 2x + 4 = 0

C) x2 + 2x - 4 = 0

D) x2 - 2x - 4 = 0

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Answers (1)
  1. 12 December, 05:43
    0
    D. x^2 - 2x - 4 = 0 ... using the quadratic formula, the result will be:

    x = 1 (+-) sqrt 5
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