$\left(7x-6\right)\left(4x+7\right)$
$\int b ^ { 4 x } d x$
$25+5-8+30+3-7$
$\frac{dy}{dx}=-\frac{6}{x^4}$
$\:5lnx-\frac{1}{2}lny-2ln\left(y^2+9\right)$
$\lim_{x\to0}\left(\frac{\left(e^{-x}-e^{2x}\right)}{x}\right)$
$4u^2+12uv+9v^2$
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