$-\left(-8\right)+\left(-33\right)-7-\left(-21\right)$
$3m^2-24m+36$
$x^2-3x-10\ge0$
$\:-6.3x-4.2$
$\int\left(y^2+2y\right)\cos\left(y\right)dy$
$\frac{e^{2x^2}}{e^{2x^2}}$
$\sqrt{n}=4$
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