Final answer:
To complete the square, we need to add a constant value to an expression to make it a perfect square. In this case, the exact value to be added is not provided, but it can be calculated using the coefficient of the linear term. The correct option would be C) 9/25.
Step-by-step explanation:
To complete the square, we need to add a constant value to an expression to make it a perfect square. In this case, the expression is not provided, so we cannot determine the exact value that needs to be added. However, we can calculate it by taking half of the coefficient of the linear term, squaring it, and adding it to the expression. Let's assume the expression is x^2 + bx. In this case, we would need to add (b/2)^2 to complete the square.
For example, if the expression was x^2 + 10x, we would need to add (10/2)^2 = 100/4 = 25 to complete the square. So, the correct answer in this case would be C) 9/25.