$9x\:-\:5x\:+\:2x\:-\:1$
$\left(\frac{4x^4y^7}{8x^2}\right)^4$
$6+11x<5$
$x^2>3\left(x+6\right)$
$x2\:+\:2x\:+\:4\:=\:0$
$17+\left(-5\right)-\frac{4}{5}j-\frac{2}{5}j+7$
$\frac{z^{-4}}{z^2}$
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