\(\Leftrightarrow\frac{\left(x^2+x+1\right)\left(x^2+1\right)-\left(x^2+1\right)\left(x^2+x\right)-x^2-x}{\left(x^2+1\right)\left(x^2+2\right)}>0\Leftrightarrow\frac{\left(x^2+1\right)\left(x^2+x+1-x^2-x\right)-x^2-x}{\left(x^2+1\right)\left(x^2+2\right)}>0\)
\(\Leftrightarrow\frac{1-x}{\left(x^2+1\right)\left(x^2+2\right)}>0\Leftrightarrow1-x>0\Leftrightarrow x