Math, asked by atu3, 1 year ago

find the value of x square +1/x square if x= 9-4√5

Answers

Answered by Ronaldo1226

3

x= 9-4√5
1/x=9+4√5
x+1/x= 18
x^2 +1/x^2 =18^2-2=324-2=322 answer

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