$\lim_{x\to-\infty}\left(2x+\sqrt{x^2+2x}\right)$
$12ab+10ab$
$4x^2+3x-22=9$
$\lim_{x\to\infty}\left(\frac{-e^{-x}}{2}\right)$
$y^2=576$
$\left(p+12q^4r^4\right)^2$
$3-x<-4$
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