2.) \( 5 x+45 \)

This expression can be simplified by factoring out the common term. Notice that both terms can be divided by 5, which gives us \( 5(x + 9) \). This reveals a deeper mathematical structure and can serve as a stepping stone for solving equations or simplifying expressions in algebra. In the real world, simplifying expressions isn’t just a math class exercise; it can be found in fields like finance! For example, if you’re calculating expenses, understanding how to break down costs into simpler terms can help you find better deals or budget more effectively. Think of it as a fun challenge: can you find a better way to break down your expenses like 5x + 45?