$8n^2+10n+3$
$\senx=\frac{\sec x\cot x}{\csc^{2}x}$
$64m\:9\:\:-\:64n\:16$
$\lim_{x\to1}\frac{\left(x+4\right)\left(3x-1\right)}{2x^3}$
$1\:-\:cos^2x\:=\:2sen^2x$
$\lim_{x\to0}\left(\frac{\log\left(x\right)}{\frac{1}{x^2}}\right)$
$\lim_{x\to1}\left(x^2\right)\left(x-1\right)$
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