$\frac{d}{dx}\frac{-5}{7x-2}$
$y^2-y=x^2-y$
$\int\:x\left(x+1\right)^8dx$
$\left(4^3\right)^{52}$
$\left(\frac{1}{2}x^2x\right)\left(2xy^2z\right)$
$\sin\left(\frac{\pi}{2}+x\right)-\cos\left(x\right)$
$\left(m+4\right)\left(m-3\right)$
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