If `x^2+1/(x^2)=18 ,` find the values of `x+1/x` and `x-1/xdot`

Explanation

To solve the problem, we start with the equation given:

**Step 1:** We have the equation:
\[ x^2 + \frac{1}{x^2} = 18 \]

**Step 2:** We need to find the value of \( x + \frac{1}{x} \). We can use the identity:
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