$\int\left(\frac{3x^3e^{\frac{-3x}{7}}}{2}\right)dx$
$\lim_{x\to\infty}\left(\frac{3x^2+5}{x^2+x-3}\right)$
$27-\left(-4\right)$
$\left(mn^2\right)+2\left(mn\right)\left(2\right)+\left(2^2\right)$
$5+5i$
$2x+\frac{5}{x^3}$
$4\left(2x\:+\:5\right)\:=\:8x\:+\:30$
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