$x^2+20x+64$
$25-100x^4$
$\frac{4x^2+4x}{x-2}$
$\int\cos^6\frac{x}{3}dx$
$\left(2m+2\right)\left(m-2\right)$
$3\sin x=2$
$\int\:\left(\sqrt{x}+\frac{1}{\sqrt{x}}\right)^2\left(\sqrt{x}-\frac{1}{\sqrt{x}}\right)^2dx$
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