Problem:
Find the roots of the following polynomial: $10 x^2+\frac{21 x}{2}-9$
Answer:
$x=\frac{3}{40} \left(-7-\sqrt{209}\right)\lor x=\frac{3}{40} \left(\sqrt{209}-7\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/algebra/quadratic_roots/15207.txt'}