$\frac{dy}{dx}=xy-2x+y-2$
$2x-4+3x-6$
$-\sin\left(2x\right)+1\:=222$
$\frac{dy}{dx}+2y=x^2+2x$
$121m^2-1$
$\int\frac{z+2}{\cot\left(z^2+4z-3\right)}dz$
$\frac{x^3-32x^2}{x-2}$
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