In this unit, we review exponent rules and learn about higher-order roots like the cube root (or 3rd root). We'll learn how to calculate these roots and simplify algebraic expressions with radicals.

Learn how square root means what number multiplied by itself will result in the given number. Created by Sal Khan and Monterey Institute for Technology and Education.

Learn about the square root symbol (the principal root) and what it means to find a square root. Also learn how to solve simple square root equations.

Learn about the square root symbol (the principal root) and what it means to find a square root. Also learn how to solve simple square root equations.

The inverse operation of taking the square is taking the square root. However, unlike the other operations, when we take the square root we must remember to take both the positive and the …

Practice finding the square root of a perfect square positive integer.

When taking square roots the answer can either be a positive or negative number, so we use the plus or minus symbol to represent that. Which value we use actually depends on the problem …

Learn the meaning of cube roots and how to find them. Also learn how to find the cube root of a negative number.

Learn the meaning of cube roots and how to find them. Also learn how to find the cube root of a negative number.

So that's what B squared is, and now we want to take the principal root, or the positive root, of both sides. And you get B is equal to the square root, the principal root, of 108.