$-\frac{dy}{dx}-\frac{2y}{x}=\frac{1}{x}$
$20x^2+9x+20$
$2x+3y\frac{dy}{dx}=0$
$\int_{-8}^{-1}\frac{x+x^2}{\sqrt[3]{x}}dx$
$4x^4-16$
$\log\left(n^n\right)$
$xy=4y$
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