$1\:<\frac{3}{x}$
$-16x^2-2x+0$
$\frac{-12x^3+9x^2+20x-15}{4x-3}$
$\left(5xy-x\right)^2$
$61\cdot98$
$\frac{x^4-2x-15}{x^2-5}$
$x^3+4\le7x-2x^2$
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