$121y^2+22yz+z^2$
$4x-5\ge2x+3$
$-\:2x\:+\:1\:<\:15$
$x^4-33x^2+16$
$a\left(1+a\right)-\left(1+a^2\right)$
$\int_3^4\left(\tan\left(x\right)\cdot\sec^2\left(x\right)\right)dx$
$\frac{x^2-9x+16}{x-3}$
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