SOLUTION: if x^2+1/x^2=38, find x^4+1/x^4

SOLUTION: if x^2+1/x^2=38, find x^4+1/x^4

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Question 370649: if x^2+1/x^2=38, find x^4+1/x^4
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
. Square both sides to get.
,
or .
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