Question

What is the value of the expression below when ?

Answer Attempt 1 out of 2

When you substitute into the expression , it transforms into . Multiply to get , and then add to that result. So, . Thus, the value of the expression is .

Always double-check your substitution and calculations! A common mistake is forgetting to apply the multiplication correctly or adding incorrectly at the end. Remember, breaking down the steps can help you avoid such pitfalls and ensure accuracy!