$300+130+162$
$\frac{dy}{dx}=z+zt^2$
$xy^2dx+e^xdy=0$
$2\cdot5^2-2\cdot3^2\cdot4-4$
$\lim_{x\to0}\left(\frac{\sqrt{1+x^2}}{x^2}\right)$
$8y+21\ge2y-54$
$3^{2m-1}=343^4$
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