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x2-x-1806=0 by completing the square

  • college -

    x^2-x+1/4=1806+1/4
    (x-1/2)^2=( ? ) squared.
    x-1/2= +- sqrt (1806+1/4)

  • college -

    x^2-x-1806=0
    x^2-x=1806
    x^2-x+(1/2)^2=1806+(1/2)^2
    (x-1/2)^2=1806+1/4
    (x-1/2)^2=7224+1/4
    (x-1/2)^2=7225/4
    as going

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