Find the Square Root: Solving √256 Step by Step

Question

256= \sqrt{256}=

Video Solution

Step-by-Step Solution

To solve the problem of finding 256 \sqrt{256} , we will determine a number that, when squared, results in 256.

The operation we are performing is finding the square root, which is defined as follows: if x2=n x^2 = n , then x x is the square root of n n .

First, consider the list of perfect squares: 1 (because 12=1 1^2 = 1 ), 4 (because 22=4 2^2 = 4 ), 9 (because 32=9 3^2 = 9 ), 16 (because 42=16 4^2 = 16 ), all the way up to 256 which needs to be checked.

Let's test the number 16:
162=16×16=256 16^2 = 16 \times 16 = 256

This confirms that 16 is the square root of 256.

Therefore, the solution to the problem is 256=16\sqrt{256} = 16.

Answer

16