Simplify: √27 A. 3√3 B. 9√3 C. 3√9 D. 5√3

To simplify square root 27, find two numbers that equal 27. But also, one of the numbers should be a perfect square (such as 4, 9, 36 ...).

9*3=27. The square root of 9 is 3, which makes it a perfect square. So, the answer is A.