If (x-1/x) = 5, the value of x^2+1/x^2 is? (With Full Process Please)

Answers (1)

Given that

x-1/x = 5
squaring on both sides
 (x-1/x)²= 5²

x²+(1/x)²-2*x*1/x = 25

x²+1/x²-2 = 25

x²+1/x² = 25+2

x²+1/x² = 27

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