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Khan Academy on a Stick

Algebra I

Properties of exponents

In this tutorial, we're going to significantly deepen our understanding of the world of exponents. In particular, we'll look at what it means to raise something to a negative exponent and also think about various exponent properties for rewriting expressions.

Exponent properties examples with variables

In this tutorial, you will learn about how to manipulate expressions with exponents in them. We'll give lots of example to make sure you see a lot of scenarios. For optimal learning (and fun), pause the video before Sal does an example.

Fractional exponents

If you're familiar with taking square roots and cube roots (and other roots), then you're ready to see that we can also express these as exponents in ways that are consistent with the exponent properties you know and love!

Simplifying radical expressions

You already know what square roots and cube roots are, now you will apply that knowledge to simplify variable expressions that involve radicals.

Radical equations

You're enjoying algebra and equations, but you miss radicals. Wouldn't it be unbelievably awesome if you could solve equations with radicals in them. Well, your dreams can come true. In this tutorial, we work through a bunch of examples to help you understand how to solve radical equations. As always, pause the videos and try to solve the example before Sal does.