$4-3x\le7$
$\frac{m^4n^4}{3m^4n^2}$
$-\left(-2-1\cdot0\right)$
$5d^2-2bc-3d$
$\left(4x^2+3x-5\right)-\left(-7x-9\right)$
$x^2+y=56$
$\int\:cot^2\:\left(5x\right)\:dx$
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