$\sqrt[2]{x^2+16}=5$
$2m-m^3+3m^2$
$\frac{32x^5+243^3}{2x+3y}$
$\lim_{x\to4}2^x$
$\frac{x^43x^3+2x^2+x-4}{x-1}$
$\frac{x+5}{3}<2x+1$
$\lim_{x\to-\infty\:}\ln\left(\frac{x^2+1}{e^x+1}\right)$
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