You take the 2 roots from 45 (5 and 9) and find out the square root of 9 is 3, while the square root of 5 is still just square root 5. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. All operations in the square root must be completed before the root is taken. This is how to calculate A and B using this method: A = Calculate the square root of the greatest perfect square from the list of all factors of 45. The square root of a number is defined as the value, which gives the number when it is multiplied by itself. Here is how to do that! The square root of 45 in its simplest form means to get the number 45 inside the radical √ as low as possible. square root of 45. The radical symbol is also called a root symbol or surds. Therefore, the square root of 45 is not an integer, and therefore 45 is not a square number. more gifs . Greatest Perfect Square Factor Method The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 45 to simplify the square root of 45. The Work . First we write the square root of 45 like this: √ 45 The largest perfect square of the factors of 45 is 9. What is the Square Root of 45 in simplest radical form? The radical symbol √ is used to indicate the square root. For example, √16 = 4. If a number is a perfect square, we can easily find the square root of … Check out the work below for reducing 45 into simplest radical form . The factors of 45 are 1, 3, 5, 9, 15, and 45. With a quick update program, you will be able to divide with the square root in a short time. The square root of 45 in simplest form is 3sqrt(5).