$\left(am\:4\:-\:3n\right)^2$
$\int\left(1+\frac{x}{2}\right)^4dx$
$2x+1>2-1x$
$( a - b x ) ( a + b x )$
$4x^2-48x$
$x^2+xy+yx+y^2$
$-1-\:-11$
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