1. The problem is to solve part b of the second question, but since the exact problem statement is missing, I will assume it involves solving or simplifying an algebraic expression or equation related to the second question. 2. Typically, for algebraic problems, we use formulas such as the quadratic formula, factoring, or simplification rules depending on the problem type. 3. Since the problem is not fully specified, please provide the full statement of part b of question 2 for a detailed solution.