$\left(-\frac{1}{x^3}\right)^4$
$3a^2-a-4$
$\lim_{x\to1}\left(sin\left(\frac{3x-3}{x-1}\right)\right)$
$\left(a^4+5\right)\left(5a^4-11\right)$
$\int\frac{9lnx}{x^6}dx$
$\frac{216+w^3z^6}{6-wz^2}$
$-\left(a-2b\right)-2\left(3a+b\right)$
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