$x^2-3x-60$
$3x^2-15$
$8\left(n+1\right)$
$\frac{d}{dx}\:t^2+2t-3$
$-xy^{-1}\left(2x^3y^{-2}+2xy^{-2}\right)$
$-1250+-2350$
$2x^4-x-1$
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