Help me with this plss If x^2+1/x^2x^(2) +(1)/(x^2)=10; then x+(1)/(x)=?

Question

Help me with this plss
If x^2+1/x^2
`x^(2) +(1)/(x^2)=10; then x+(1)/(x)=?`

Answer 1

(x + 1/x)² = x ² + 2 + 1/x ² = 10 + 2 = 12

==> x + 1/x = ±√12