$\sqrt{a}+2\sqrt{a}+\sqrt{a}$
$49x^{10}-56x^5+16$
$\int t\sqrt{2t+7}dt$
$\int\frac{1}{x^3-216}dx$
$\int x\cdot\left(x+2\right)dx$
$5\:\cdot\:-3\:+\:-2\:\cdot\:9$
$\int\frac{11\cdot x+20}{x+2}dx$
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