$\lim_{x\to25}\left(\frac{x^2-625}{\sqrt{x}-5}\right)$
$x+y=13\:$
$\:\frac{4\left(s^2+7s+10\right)}{s^2\left(s^2+8s+12\right)\:}$
$3\left(6\right)+5\left(0\right)+\:4\left(2\right)$
$\sin\left(x\right)\cdot\csc\left(\frac{\pi}{2}-x\right)$
$\lim_{x\to-1}\left(x^3-4x-1\right)$
$2x^4+x^2+1;\:x=10$
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