Problem:
Find the sum $p(x) + q(x)$ of the following two polynomials: $p(x) = 13 x^2-9 x+7$, $q(x) = -13 x^2-5$
Answer:
$2-9 x$
{'source': 'AMPS', 'file': 'amps/mathematica/algebra/polynomial_arithmetic/47910.txt'}