This is the second in the series. All expressions are in the format ax^2 + bx + c, and for all equations, a=1. Additionally, all coefficients/constants are positive. There are a total of 12 expressions and their factored forms. This is slightly more difficult than the first because c=1 and a varies. Additionally, one expression is not factorable.
(Key: The correct factored expression is right below the original expression.)