Final answer:
The expression 298 - √2 * √2 simplifies to 298 - 2. Based on the provided options, the closest correct answer is C) 298 - √4, which also simplifies to 298 - 2.
Step-by-step explanation:
The student's question involves simplifying a mathematical expression. The expression provided is 298 - √2 * √?. To calculate the value of this expression, we must recall that the square root of a number squared is simply the number itself. So, in the expression √2 * √2, these two square roots cancel each other out, leaving us with just the number 2.
Therefore, the original expression simplifies to 298 - 2. There are no terms in the expression given to us that matches any of the four options exactly, suggesting there might be an error in the expression. However, the closest in form would be 298 - √4, since √4 is indeed equal to 2.
Looking at the options provided, the most correct match to this calculation is C) 298 - √4, which simplifies to 298 - 2.