SOLUTION: if (x*x)+1=3x then what is the value of (x*x)+1/(x*x)

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Question 215973: if (x*x)+1=3x then what is the value of (x*x)+1/(x*x)
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(x*x)+1=3x
x^2+1=3x
x^2-3x+1
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x=(3+-sqrt[-3^2-4*1*1])/2*1
x=(3+-sqrt[9-4)/2
x=3+-sqrt5)/2
x=(3+-2.236)/2
x=5.236/2
2.618 ans.
x=(3-2.236)/2
x=.764/2
x=.382 ans.