$\left(\frac{3}{7}p^2+n^2\right)\left(\frac{3}{7}p^2-n^2\right)$
$\frac{d}{dx}\sqrt[3]{120}\:$
$-1^2+\left(-1\right)-1$
$-9d+5n-3d$
$-9x\le6$
$\frac{3x^3-45x-12}{x-4}$
$6x^2y^2-8xy^5$
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