$6x^2+16x+27>0$
$\sqrt{10u-9}=u$
$\sqrt{49b^{8}}$
$\left(7x^5+9y^6\right)^2$
$\int_0^{\infty}\left(\frac{x^3}{\left(x^2+1\right)}\right)dx$
$\left(\frac{1}{n+2^n}\right)x^n$
$\frac{dy}{dx}\:-\:2y\:-\:xy\:=\:0$
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