$\int\:\frac{2x+x}{x^3}dx$
$z^2+69z+980$
$6x-2<8+x$
$\frac{d}{dx}2x^2-3xy^3+2x=7x-y$
$\int\left(\frac{x-4}{\left(x^2+2x+2\right)\left(x-1\right)}\right)dx$
$\frac{1}{\:e^x\sqrt{y^2-1}}dx-\frac{y}{x^2}dy=0$
$-x+1>2x+4$
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