$5^2\cdot3$
$\lim_{x\to0}\left(\frac{\sqrt{x}-\sqrt{2}}{x^2-4}\right)$
$\int_1^{-1}\left(\frac{1}{x}\right)dx$
$9p^2-24p+11=0$
$\frac{-x^4\:+\:1}{x^2\:+\:1}$
$\frac{d}{dx}\frac{a}{bx+c}$
$\int - 2 x ^ { 2 } e ^ { x } d x$
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