$2x^2+254+16$
$y=3\ln\left(\sin^2\left(x\right)\right)$
$\frac{3}{x}\ge1$
$a+12+6a-7$
$\left(z+1\right)\left(4z+2\right)$
$\frac{18}{\left(\frac{6}{\left(-2\right)}\right)}$
$4a^2+25b^2-20ab$
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