$3x-7<5$
$4x^2+3x$
$\frac{dy}{dx}\left(2x+y\right)$
$\left(-2\right)-\left(2+5\right)-\left(-2\right)$
$\int2e\:2z\:dz$
$\left(ab-4\right)\left(ab+8\right)\:$
$\frac{1+\cos\left(x\right)+\sin\left(x\right)}{1-\cos\left(x\right)^2-4\sin\left(x\right)^2+4\cos\left(x\right)\sin\left(x\right)}$
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