$1^{51}$
$\left(8x=-4\right)+\left(3x=14\right)$
$\frac{n^3-3n^2}{n^2-16}$
$\frac{x}{-2}=3$
$\left(3a+2.5b\right)^2$
$\left(3p^{2\:}+\:2q\right)^3$
$12a^2b^4+16c^3b^2$
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