1. The problem involves understanding steps 2 and 3 of a previous solution. Since the original problem is not restated, let's clarify what typically happens in these steps. 2. Step 2 often involves applying a formula or rule. For example, if solving an equation, this might be substituting values or expanding expressions. 3. Step 3 usually simplifies the expression or solves for the variable. This might include combining like terms, factoring, or isolating the variable. If you provide the original problem or steps 2 and 3, I can explain them in detail with formulas and intermediate work.