If you're seeing this message, it means we're having trouble loading external resources for Khan Academy.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Negative and fractional exponents

3 videos
1 skill
It's normally a bad idea to hang around with negative people or do negative things, but we think it's OK to associate with negative exponents. And fractional exponents are even more fun. This idea will open up entirely new vistas to your mathematical life.

Negative exponents

VIDEO 7:14 minutes

Negative exponent intuition

VIDEO 4:38 minutes
Intuition on why a^-b = 1/(a^b) (and why a^0 =1)

Zero, negative, and fractional exponents

VIDEO 14:04 minutes
Zero, Negative, and Fractional Exponents

Positive and negative exponents

Fractional and integer bases raised to positive and negative integer exponents.