$x^2+7x+10\le0$
$-5x^3yz;\:x=2;y=1;z=-1$
$\frac{d}{dx}\left(y^2+y=\sin\left(2x\right)\right)$
$3^1.\:3^{-4}$
$15x^2+21y^2$
$16n^2+24n+9$
$6z+8z^2+z+5z^2$
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