$x^2+8x+16\ge254$
$\int\cot x\csc x\sqrt{1+\csc\left(x\right)}dx$
$\frac{d}{ds}\left(\left(s+2t-u\right)^4+\left(\left(s+2t-u\right)^2\left(stu^2\right)\right)\right)$
$\frac{5x^7}{x^3}$
$\frac{x^2-xy}{\sqrt{x+\sqrt{y}}}$
$4wt\:+\:2wh$
$\frac{a^3-27b^3}{3a+9ab}$
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