$x^2-2x+4\ge0$
$4x\:-\:7\ge\frac{-12\:x\:+14}{4}$
$\int x^2e^{3x}da$
$\lim_{x\to d}\left(\frac{x^3-d^3}{x-d}\right)$
$\left(-x^7y^{\frac{1}{2}}-4a^4b^4\right)^4$
$\frac{z}{z^4+4}$
$4x\:-\:9y\:+\:2z\:=\:5$
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