$\frac{3x^3-2x^2-2x-1}{x+1}$
$\lim_{x\to1}\left(\frac{\sqrt{7x+16}-3}{5x^2+2e^{3x+3}-7}\right)$
$\int x^3\frac{1}{\sqrt{x^2+64}}dx$
$x\frac{dy}{dx}-x^2y-2x^2y^{\frac{1}{2}}=0$
$\frac{1^n}{2^n}$
$\frac{1}{2}n^2\:;\:n=6$
$\int\frac{2x^2}{3x^3+5}dx$
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