$2c^2+7c+3=0$
$m^2n^4-x^{12}$
$\left(1-x\right)dy-y^2dx$
$x^2-36=0$
$30+5+8-3+1-4$
$m^2+2mn+n\:^2$
$\cos\left(5a+3\right)\sec48$
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