$-\:7\:-\:52\:+\:7\:+\:28\:-\:9$
$( m + 3 ) ^ { 3 }$
$x^3-12x^2+45x$
$2x^3-7x^2+8x-3$
$\frac{\sec\left(a\right)^2}{1+\sec\left(a\right)}$
$\frac{x-4}{3}+\frac{2x-3}{9}\ge0$
$\left(3x+5z+4y\right)^2$
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