Hello,

I was asked to find the domain of this function

f(x)= $\displaystyle \frac{1}{{\sqrt {x^2 + x + 1} }}

$. So far I cannot factor out the denominator. I know that the denominator cannot be = 0,

but I am not able to find the x value where

$\displaystyle

\sqrt {x^2 + x + 1} > 0

$

Can someone tell me if there is a domain or domains in this function? Thank you for the help.