$\left(3x+\frac{1}{2}\right)\left(2-3x\right)$
$3x^3-2x^2+3x-5,\:x=-2$
$-4-2+5+11-3$
$\int ze^{7z}dz$
$3 \cdot 3,4 - 4$
$w=e^y\cos\left(x\right)+z^2$
$256x^2-900$
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