$\int_{-1}^4\left(x^2e^x\right)dx$
$\lim_{x\to10}\frac{10x}{2x+5}$
$45\:x\:90$
$\lim_{x\to0}\left(\frac{x^2}{cosx-1}\right)$
$4+3-3-2+5+\left(-2+5\right)-3+4-2+5$
$3\sqrt{2}^2$
$\left(2x^3+2\right)\left(2x^3-2\right)$
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