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Find All Real Solutions Of The Equation (x2nd Power +1)2nd Power - 18(x 2nd Power+1) =-17?

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    (x2 + 1)2 - 18(x2 + 1) = -17

    x4 + 1 + 2x2 - 18x2 - 18 = - 17

    x4 - 16x2 - 17 = - 17

    x4 - 16x2 = - 17 + 17

    x4 - 16x2 = 0

    (x2)2 - (4x)2= 0

    (x2+ 4x) (x2+ 4x)= 0
    0 0

    Amber22 

    answered 12 months ago

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