Square Roots and Radicals

Mathematics is the language of science, and like any language, there are terms and rules that you must master to speak it fluently. We'll explore the terms and rules that you'll need to follow any basic conversation involving square root signs. Like any sign, square root signs are trying to tell us something. They're telling us to find the square roots of whatever numbers are beneath them, and the numbers beneath a square root sign is called a radicand.

As for square roots, a number r is a square root of a number x if r^2 = x. Based on this definition, a positive number actually has two square roots: a positive number and the negative of that positive number. For example, the numbers 5 and -5 are square roots of 25 because 5^2 = 25 and (-5)^2 = 25. You can think of every positive root as having a negative, evil twin.However, we're going to focus on the positive and limit our conversation to principal square roots, the positive square roots of positive numbers. For example, the principal square root of 25 is 5. Also, we won't cover the square roots of negative numbers.

This application will help you learn the square roots and radicals. In all formulas, tasks are randomly generated, which means you can go through several times to strengthen your knowledge