$6x^2-x-6<0$
$\frac{-18x^2-11+4x+8x^4}{-2x^2+5}$
$10-3x<0$
$6\:\left(n\:-\:3n\right)\:+\:7$
$\left(\sqrt[3]{x+1}\right)\left(\sqrt[3]{x-1}\right)$
$\:2\left(3r+4\right)+3\left(r+5\right)$
$5^3-x^2y-5xy^2+y^3$
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