In "Square Roots and Radicals 1," you will learn what a square root or radical is and how to find the square roots of a number. The lesson explains the idea of the principal square root and how to use it to determine the non-negative square root. You will also learn that the square root of a negative number is not a real number and how to solve problems involving square roots.
Introduction to what a square root or radical is, how to find the square roots of a number, and the idea of the principal square root.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com