$-3.4-5.2$
$x^4+7x^2+12$
$\left(20\right)\:x\:\left(+79\right)$
$3tan^2x+16tanx+5$
$-936+-552$
$\frac{x^2+2x-32}{x+7}$
$\lim_{x\to0}\left(\frac{x-\sin\left(x\right)}{\left(x\sin\left(x\right)^{\frac{3}{2}}\right)}\right)$
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