$\frac{3x^4-3x^3-6x^2-3x-9}{3^2+3}$
$\frac{6+24}{2}$
$2^{11}\cdot2^{-7}$
$\left(z+3\right)\left(2z+1\right)$
$-4+100m^2$
$-\sin\left(x\right)^2-1$
$-8\:-\:\left(-5.4\right)\:-\:1.8$
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