$\int\left(\frac{1}{u^2-u+1}\right)du$
$6+v+45$
$\left(xy^2ze3+xyz\right)^2$
$\int\frac{2m+1}{\left(3m-1\right)\left(2m+5\right)}dx$
$5x^2+3x+xy=3$
$-6cos^2x$
$9a^2-12a+16$
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