SOLUTION: If x+(1/x) = 9, what is x^2+(1/x)?

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Question 1115017: If x+(1/x) = 9, what is x^2+(1/x)?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
If x+(1/x) = 9,
multiply by x
x%5E2+%2B+1+=+9x
x%5E2+=+9x+-+1
:
what is x%5E2%2B%281%2Fx%29
replace x^2 with (9x-1)
%289x-1%29%2B+1%2Fx
9x+%2B+1%2Fx+-+1