$\frac{x^2+x+1}{x+1}$
$\left(\left(a+b\right)+c^2\right)^2$
$\int_{-\infty}^1\frac{-1}{x^2}dx$
$f\left(x\right)=9-3x-2x^2$
$6.x-4\ge3.x+5$
$\sqrt{24^2+7^2}$
$\left(1+a+a^2\right)^4$
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