$\left(8x-3\right)\frac{1}{3}$
$\frac{-2x^2+5x^2-6x+3}{x-1}$
$\int x\sec^2\left(9x\right)dx$
$x^2+22x+66$
$x\left(x-4\right)=221$
$3x^6-6x^4-12x^3$
$6\left(x+1\right)>2\:\left(2x+1\right)$
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