If xg+1xa is a polynomial in one variable and if it is given that g = a, for what value of 'a' is this a polynomial?___

If xg+1xa is a polynomial in one variable and if it is given that g =

1.	If xg+1xa is a polynomial in one variable and if it is given that g = a, for what value of 'a' is this a polynomial?___
Answer» If $x^{g}$ + $\frac{1}{x^{a}}$ is a polynomial in one variable and if it is given that g = a, for what value of 'a' is this a polynomial? ___