And what's nice about this, this is pretty straightforward to simplify. 12 divided by three is four, and w to the seventh divided by w-squared, well, we could divide both by w-squared or you could …

Fractional powers, also called rational exponents, are a different way of writing roots of numbers, the numerator is the power of the term inside the root and the denominator is the power of the …

When simplifying a radical, the quickest method (besides intuition) is to make a factor tree. A factor tree is something you may have learned about in grade school.

Expand your algebra superpowers by introducing exponents! Let's build our toolkit that allows us to manipulate exponents algebraically.

How to evaluate powers that are negative unit fractions, like 9 raised to -½ and 27 raised to -⅓. Created by Sal Khan.

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.

Raising fractions to a power is a fundamental math skill. To do this, simply multiply the numerators and denominators separately. For example, when raising a fraction like 2/3 to the third power, …

A worked example of simplifying elaborate expressions that contain radicals with two variables. In this example, we simplify √ (60x²y)/√ (48x). Created by Sal Khan and Monterey Institute for …

Learn how to simplify expressions like (5^6)/ (5^2). Also learn how 1/ (a^b) is the same as a^-b. Towards the end of the video, we practice simplifying more complex expressions like (25 * x * …

A worked example of simplifying an expression that is a sum of several radicals. In this example, we simplify √ (2x²)+4√8+3√ (2x²)+√8. Created by Sal Khan and Monterey Institute for …