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.

And now that we know a little bit about exponents, we'll see that the square root symbol or the root symbol or the radical is not so hard to understand. So, let's start with an example.

Test your understanding of Radical equations & functions with these 10 questions.

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 …

Simplifying square roots (variables) Simplifying square-root expressions Simplifying square roots review Exponents & radicals: FAQ

What are radical, rational, and absolute value equations? Radical equations are equations in which variables appear under radical symbols (x ).

This unit is all about expanding our skills with exponents and radicals (roots). We'll explore square and cube roots, learn about irrational numbers, and push ourselves to understand exponents …

Unit 1 Polynomial arithmetic Unit 2 Factoring polynomials Unit 3 Quadratic functions & equations Unit 4 Exponents, radicals, & irrational numbers

We previously learned about integer powers—first positive and then also negative. But what does it mean to raise a number to the 2.5 power? In Algebra 2, we extend previous concepts to …

Which video (and where) explains why you can add up the digits of a number to see if it's divisible by 3 like at 0:25 - 0:36