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Algebra

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w^4-6w^2-2=0 what is the solution?

  • Algebra - ,

    w^4-6w^2-2=0
    (w²)^2;-6(w²)-2 = 0
    put x=w²
    x^2-6x-2=0
    Apply the quadratic formula:
    x=(6±√(36+8))/2
    =3±√(11)
    Therefore
    w=±√(3±√(11))

    (for a total of 4 solutions)

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