$\int\left(\frac{3}{50-2x}\right)dx$
$-32-56+48-134+30$
$s^2+6s+7$
$3x^2-11+6$
$x^2-10x-24$
$\left(x\:2\:-y\right)\:2$
$\tan x=\frac{1}{\cot x}$
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