$x2-x+3<0$
$\frac{1}{2}x+\frac{1}{4}x$
$9x^2+96x+64$
$\frac{9x^3-12x^4+21x^2+3}{3x}$
$7\left(5y\:-\:3\right)$
$4x^7\cdot3x^8$
$\ln\left(2x^3+x\right)$
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