Simplifying
$\lim_{x\to5}\left(\frac{x^2-25}{2x^2-2x+10}\right)$
$\frac{3}{x+2}-2<11$
$14f+7+5f$
$\lim_{x\to-2}\left(\frac{2x^2+3x-2}{x+2}\right)$
$3sen\theta\:-cos2\theta\:+1=0$
$\frac{-100p^2q}{-20p^7q^2}$
$2\log\left(p\right)-3\log\left(q\right)+\log\left(r\right)$
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