$3\left(x\:-\:2\right)\:+\:2\left(x\:-\:3\right)\:<\:2\left(2x\:+\:8\right)$
$5x+4>7$
$x^2+9x+9$
$\frac{20x^2+17x-24}{x^3-x}$
$\int_{-2}^{-1}\left(7-2x^2\right)-\left(x^2+4\right)dx$
$7x^3+8x-10x-9x^2-2x$
$2x^2-2x-1$
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