$48-x=-97$
$x2\:+\:4x\:+\:18$
$16x\frac{2}{3}+4m\frac{1}{3}+4$
$\frac{d}{dx}\left(\frac{x^2}{4}+\frac{2}{x}+1\right)$
$\left(3x\:-\:\frac{2}{3}\right)^2$
$z^2+2z+4$
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