$\frac{x^3-1}{x^2+1}$
$x+121-163$
$\frac{5\left(3^2\left(10^2\right)\right)^2}{3^2\left(60^2\right)}$
$\frac{d}{dx}\left(2sinh\left(2x\right)\right)$
$\left(x-\frac{5}{2}\right)^2=\frac{21}{4}$
$2zp-6ca+8az-4pc$
$cos2x\:=\:3senx\:-1$
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