$196-144y^2$
$\sec^2x-4\tan x=0$
$x^2+x+25=0$
$-290-\left(-271\right)$
$\frac{-m}{4m+16}=\frac{1}{m+8}$
$\int\frac{1}{4}\left(3x-2\right)e^{-\frac{x}{4}}dx$
$3x=27$
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