$1925\cdot101-1924$
$x^2+7x>-10$
$6x-30+2x$
$\frac{dx}{dy}=\frac{y^2}{5x-xy}$
$\left(x^2-4\right)\left(x-3\right)$
$\left(\left(2\right)\left(6\right)\left(9\right)\left(7\right)\left(\frac{2}{3}\right)\left(\frac{1}{2}\right)\right)$
$\frac{cosa}{cota}\cdot\frac{cot^2a}{cos^2a}$
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