$81b^4+36b^2c^2+16b^4$
$2>b+4$
$5\sin^2\left(x\right)-9\sin\left(x\right)+1=0$
$8x+44x+2$
$y^2+3y-13$
$\frac{d}{dx}\left(7x^2-3\right)$
$5\left(-3z+7\right)+5\left(z-1\right)$
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