Whe simplify the square roet. Assume all variables represent positive numbers, If the square root is already simplified, so state.

Select the correct cholce below and, if necessary, fill in the answer box to complete your choice.
A. (Type an exact answer, using radicals as needed.)
B. The expression is already simplified.

To simplify , we can break it down into its prime factors: . Since the square root of 4 is 2, we can rewrite the expression as .

So the answer is:
A.

Now let’s sprinkle in some fun facts! Did you know? The concept of square roots dates all the way back to ancient Babylon, around 2000 BC. They had a pretty nifty way of estimating roots using geometrical methods, which laid the groundwork for our modern understanding!

Another quirky tidbit: Square roots aren’t just used in math class; they’re also found in real-world applications like calculating areas! For instance, if you want to know the side length of a square with an area of 12 square units, you’d simply take the square root of 12 (remember, that’s , making the side length approximately 3.46 units)! How’s that for a practical math moment?