$\sec\left(x\right)\cos\left(x\right)\sin\left(x\right)=\sin\left(x\right)$
$s^2+3s-10$
$\frac{46.4-46.8}{40-0}$
$27a^3-64b^6$
$6x^{3}-5x=\left(5y-12\right)^{3}$
$\frac{d}{dx}9xlnx-5x$
$\left(2x+7\right)\left(2x-15\right)$
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