if x=3+root8, find the values of xpower2+1÷xpower2
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x = 3+√8
then 1/x = 3-√8
so x^2+1/x^2 = (x+1/x)^2 -2 = (6)^2 -2 = 36-2 = 34
So your answer is 34.
then 1/x = 3-√8
so x^2+1/x^2 = (x+1/x)^2 -2 = (6)^2 -2 = 36-2 = 34
So your answer is 34.
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