$x^2-8x-128$
$2\:\sin2x-\sqrt{2}=0$
$\int\sqrt{1+36t}\cdot\frac{1}{\sqrt{t}}dt$
$\int a^{5nx}dx$
$a^4-4a^2-16$
$cos^2x-sin^2x=1$
$\sqrt{a^3}b$
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