$\sqrt{9\left(\infty^2\right)}+2$
$\int_0^0\frac{-\cos\:\left(2x\right)}{2}dx$
$\left(x^2+x+7\right)+\left(x^2+x+7\right)\left(x^2+x+7\right)$
$x^2+21x+7$
$-3+7+1-4+5-12+9$
$2\cdot x+40=52$
$\lim_{x\to8}\left(\frac{4x^3}{e^x}\right)$
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