12.5 Negative exponent rule

Negative exponent rule

Don’t be scared by the negative sign! Just flip the number over to get rid of the negative sign. In other words, a number with a negative exponent should be put to the denominator, and vice versa.


an=1an,a0 {a^{-n}} = \frac{1}{a^n} , a \neq 0
and1an=an,a0 and \frac{1}{a^{-n}} = {a^n} , a \neq 0
  • 2.
    Simplify the following:
Teacher pug

Negative exponent rule

Don't just watch, practice makes perfect.

We have over 2720 practice questions in Algebra 2 for you to master.