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Brian McLogan
What is the principal square root
👉 Learn how to simplify radical expressions. In this playlist we will explore simplifying radical expressions by prime factorization and rules of exponents. We will explore the square root, cube root as well as the fourth root of numbers...
Khan Academy
Khan Academy: Algebra: Simplifying Square Roots
Video simplifying the square root of an algebraic expression using prime factorization. [5:36]
Khan Academy
Khan Academy: Algebra: Approximating Square Roots
Video showing how to approximate the square root of a number to the hundredths place without using a calculator. [7:12]
Khan Academy
Khan Academy: Algebra: Simplifying Square Roots Comment Response
Video simplifying the square root of an algebraic expression found in the previous video [Simplifying Square Root] using a different process. Includes a discussion of the domain of the variable. [4:16]
Khan Academy
Khan Academy: Algebra: Complex Numbers: Imaginary Roots of Negative Numbers
Video shows how to simplify the square root of a negative number using the imaginary unit i. [4:04]
Khan Academy
Khan Academy: Radical Radicals: Approximating Square Roots
Video showing how to approximate the square root of a number to the hundredths place without using a calculator. [7:12]