$\sec x-\cot x$
$7x-2\ge3x-14$
$\int x^{20}dx$
$\left(x+5\right)^2=2x^2$
$\int\left(3x+8\right)^2dx$
$49m^6-70am^3n^2$
$\left(4x+5\right)\left(x+3\right)$
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