$\left(325+\left(-284\right)+\left(265\right)\right)$
$t\frac{dx}{dt}-x=\sin\left(t\right)$
$\frac{x^5+x^2-3}{x^2-x+1}$
$9x+27=-9$
$\left(5x+4y\right)^2\:\:$
$81-5x\le108-8x$
$2\sin^2\left(30\right)+3\sin\left(30\right)+5$
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