$\left(cos\left(8x\right)\right)^2$
$\lim_{x\to2}\left(\frac{5x^2+10}{x^2+6x-16}\right)$
$ab^2-30a^2b+25a^4$
$2-3+34$
$\left(8\:+\:m^4\:-\:m^2\right)\:+\:\left(6\:+\:2m^2\:+\:5m^4\right)$
$\frac{x^3+x^2-2x}{x+2}$
$x-2<x$
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