$\int\:\frac{x+3}{x^4+9x^2}dx$
$38,9-2,6$
$\left(\frac{y+7}{3}\right)^2$
$9g-11+10g-\left(12-11g+13\right)$
$5+5+6-15+3-8-7+5-2+24$
$6m^7n^2-12m^3n^6$
$m^2=25$
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