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maths

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solve the following equation by completing the square

x(square) - 4(square root 5)x =6 = 0

Then x= or x=

  • maths -

    x^2 - 4√5 x + 6 = 0
    x^2 - 4√5 x + (2√5)^2 + 6 - (2√5)^2 = 0
    (x - 2√5)^2 = 14
    x - 2√5 = ±√14
    x = 2√5 ± √14

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