$\left(5x^2+5x-4\right)\left(x+19\right)$
$7p+6q-2p+q$
$\frac{d^2}{dx^2}\left(e^xsen\left(y\right)\right)$
$x^2+y^2-8=0$
$f\left(x\right)=\frac{3}{x^2-x-2}$
$3\left(x-1\right)+2\left[2-x-3\left(x-2\right)\right]\ge5\left(1-x\right)+5$
$\frac{dy}{dx}-y=2+4x$
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