$12b-5<8b+7$
$m^2+5m+4$
$3-6x$
$x-1.75=2.2$
$\left(7x-\sqrt{5}\right)^2$
$280.000+257.000$
$\frac{\sin^2\left(x\right)}{1-\cos^2\left(x\right)}=1$
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