$\lim_{x\to-1}\left(\frac{3x^3-x^2}{2x+1}\right)$
$\frac{8^4}{2^2}$
$\int_0^2\left(1+2y\right)dy$
$\frac{d}{dx}\left(\ln\left(\sqrt{\frac{2x-1}{2x+1}}\right)\right)$
$34yz+57yz+-7yz$
$36-121c^2-132c$
$\lim_{x\to-1}\left(\frac{x^4-x^2+2x+2}{x-1}\right)$
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