$y+\tan\left(x\right)y=\cos^2\left(x\right)$
$\frac{dy}{dx}=23\left(y^2+1\right)$
$\left(-8\right)\left(-4\right)+6$
$xyz^2+9x^3y^4z-2x^2z^4$
$\left(4m^6+\:2n^8\right)\:\left(4m^6\:-\:2n^8\right)\:$
$\int\left(\frac{-4}{x}\right)dx$
$7-2x<1$
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