if x^2+1/x^2=11 then find x-1/x
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X^2+1/x^2=11
X^2+1/x^2 - 2(x)(1/x) +2(x)(1/x)=11
(X-1/x)^2+2(1) = 11
(X- 1/x)^2 =11-2
(X-1/x)^2=9
(X-1/x) =root (9)
(X-1/x)= +-(3)
X^2+1/x^2 - 2(x)(1/x) +2(x)(1/x)=11
(X-1/x)^2+2(1) = 11
(X- 1/x)^2 =11-2
(X-1/x)^2=9
(X-1/x) =root (9)
(X-1/x)= +-(3)
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