Calculators and computers have made finding the square root of a number quick and easy, but sometimes you might need to find the square root without these handy tools. Whether you’re preparing for a ...

The square root of a number a is a number x such that x2 = a, or in other words, the number x whose squared value = a. For example, 2 and −2 are square roots of 2 because 2² = (−2)² = 4. The radical ...