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If x-1/x=3, find the value of x^2+1/(x^2...

If `x-1/x=3,` find the value of `x^2+1/(x^2)dot` ​

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Given:
`=> (x-1/x)^2=(3)^2`
`=> (x^2+(1/x)^2-2xx(x)xx(1/x)=(3)^2`
`=> x^2+1/x^2-2=(3)^2`
`=> x^2+1/x^2=9+2`
`=> x^2+1/x^2=11`
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