$\:7\:-\:12x\:-\:2x^2$
$\int\left(\frac{9x^2}{\sqrt{x^2-4}}\right)dx$
$\int\sec^2\left(2o\right)do$
$\left(3a^2+2ax\right)^2$
$36x^2-8x-5$
$-385p^5q^6-36p^5q^6$
$x^2+169x+9$
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