$\left(7n+2m^5\right)\left(2m^5-7n\right)$
$\lim_{x\to\infty}\left(\frac{2}{x}-8\right)$
$\left(x+2\right)\left(x-2\right)<2\left(2-x\right)$
$e=\:sec240\:+\:cot135\:+\:csc330$
$\frac{32p^{5}q^{6}}{-8p^{3}q^{2}}$
$x^2-16h^2$
$a^2-b^2-\left(a-b\right)^2$
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