$9m^2+12m+4m^2$
$4\left(x\:+\:y\right)\:+\:2\left(2x\:+\:4y\right)$
$\left(2x-2\right)\left(x-1\right)$
$\frac{x^{2}+2x}{\left(x+3\right)\left(x-1\right)}\leq\frac{24}{x^{2}+2x-3}$
$\left(2ax-3by\right)^2$
$x^2+\frac{4}{3}+\frac{16}{36}$
$\lim_{x\to0}\left(1+\frac{8}{x}\right)^x$
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