$9x^2-9x+2=0$
$8n^3+27$
$\lim_{x\to-3}\left(\frac{x^2-x-6}{x-3}\right)$
$2x^2+3x-1^2$
$\lim_{x\to0}\frac{\left(ln\:n\right)^2}{n}$
$x+10+10x$
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