b.

To simplify the expression , we first distribute the term outside the parentheses. This gives us from the . Combining like terms, we see that cancels out, leaving us with the simplified expression: .

Now, let’s sprinkle in some fun tidbits about polynomials! Polynomials can be visualized as a roller coaster ride, each term representing a thrilling loop or drop! In fact, the highest degree term (like here) is often the most significant, determining the polynomial’s end behavior and shape.

When working with expressions like this, it’s crucial to watch out for common mistakes, such as forgetting to distribute correctly or combining terms improperly. Keeping an organized list of like terms makes simplifying smoother, like using a map for navigating a tricky amusement park!