What is x^2+y^2+x^{-2}y^{-2}+9 ?

The solution to x^2+y^2+x^{-2}y^{-2}+9 is x^2+y^2+1/(x^2y^2)+9

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simplify x^2+y^2+x^{-2}y^{-2}+9

simplify

x^{2} + y^{2} + x^{- 2} y^{- 2} + 9

x^{2} + y^{2} + \frac{1}{x ^{2} y ^{2}} + 9

Solution steps

x^{2} + y^{2} + x^{- 2} y^{- 2} + 9

Simplify

x^{- 2} y^{- 2} : \frac{1}{x ^{2}} \cdot \frac{1}{y ^{2}}

= x^{2} + y^{2} + \frac{1}{x ^{2}} \cdot \frac{1}{y ^{2}} + 9

Simplify

\frac{1}{x ^{2}} \cdot \frac{1}{y ^{2}} : \frac{1}{x ^{2} y ^{2}}

= x^{2} + y^{2} + \frac{1}{x ^{2} y ^{2}} + 9

What is x^2+y^2+x^{-2}y^{-2}+9 ?
The solution to x^2+y^2+x^{-2}y^{-2}+9 is x^2+y^2+1/(x^2y^2)+9