$36.48+6.2354$
$\lim_{x\to-2i}\left(\frac{2x-\left(x+2i\right)^2}{\left(x^2+4\right)^2}\right)$
$\int\frac{7x^2+32}{\left(x+2\right)\left(x^2-16\right)}dx$
$\int\frac{x}{\sqrt{2x+7}}dx$
$1\:por-1$
$3y^3+x^2=5$
$ux-uy+u=0$
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