$2\cdot1^3+2\cdot1^2-3-1$
$-x+3x-2\:si\:x\:es\:3$
$3\sqrt{75}-4\sqrt{12}+\sqrt{27}$
$\frac{\left(6\right)^3+\left(xy^2\right)^3}{6+xy^2}$
$-\left(-12-8-6\right)-3$
$984+-685$
$\frac{1}{2}p-\frac{2}{3}q\:\frac{3}{4}p-\frac{1}{2}q$
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