39 videos in "Intro to Square Roots"

Radical Expressions  Square Roots

Simplifying Square Roots

Rationalizing Denominators of Radical Roots

Radical Expressions of integers (Part 1)

Radical Polynomial Expressions (Part 2)

Square Roots and Radicals 1

Square Roots and Radicals 2

Square Roots and Radicals 3

Square Roots and Radicals 4

Square Roots and Radicals 5

Square Roots and Radicals 6

Square Roots and Radicals 7

Square Roots and Radicals 8

Square Roots and Radicals 9

Square Roots and Radicals 10

Square Roots and Radicals 11

Square Roots and Radicals 12

Square Roots and Radicals 13

Square Roots and Radicals 14

Square Roots and Radicals 15

Square Roots and Radicals 16

Square Roots and Radicals 17

Square Roots and Radicals 18

Square Roots and Radicals 19

Rationalizing the denominator

Simplifying Radicals by Factoring

Multiplying Radicals and Simplifying

Simplifying a Radical with Variables

Simplifying Rational Radical Expression

Simplify a Radical Expression with Variables

Rationalizing the Binomial Denominator

Adding Radical Expressions

Simplify Fraction Under a Square Root

Add Radical Expressions

Simplifying Square Roots

Simplify Square Root of an Integer

Square Roots and Radicals 12b

Rationalizing a Denominator

Rationalizing a Denominator
Square Roots and Radicals 1
 What are square roots?
 What are radicals?
 What does it mean to square a number, a fraction, or a decimal?
 Why do you get a positive number when you square a negative number?
 Why do positive numbers have two square roots?
 What are the square roots of 16?
 What is the principal square root of a number?
 How do you find the square root of a number?
 What is the square root of 81?
 What is the square root of 0?
 What is the square root of 9?
 How do you find the square root of a negative number?
 How do you find the square root of a fraction?
 What is the difference between sqrt(49) and sqrt(49)?
 What is the square root of 9/16?
This lesson starts out as an introduction to squaring numbers. Then, this leads into the idea of square roots. Several examples are shown to explain what it means to take the square root of a number, when you can calculate it and when it is not a real number, and how to find the value of a square root. Also, the principal square root is explained. A very good introduction to the idea of radicals / square roots.