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$\displaystyle 1+$$\displaystyle \frac {2}{1+\frac{2}{x+\frac{2}{x}}}$ and $\displaystyle \frac{3x^2+2x+6}{x^2+2x+2}$ are equal when x = 2 and x = -1.

True or False?/ They are equivalent expressions on (-infinity,infinity)

I'm lost. How do you do this?

Thank you!