(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

8x^-3 = 64

2. Relevant equations

None.

3. The attempt at a solution

I tried doing all sorts of things, changing 8x^-3 to (1/8x)^3 or trying to get both sides to have the same base, but couldn't get it to work.

The book I am using does not explain how to do so, I have already looked through the whole chapter that the problem is from.

Primarily, I would like assistance in understanding the concepts behind this problem. With the current problem, it is relatively easy to figure out by educated guessing & checking, but when there are more difficult numbers and more challenging problems, guessing and checking won't work. Thanks for the assistance.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Solving Negative Exponents

**Physics Forums | Science Articles, Homework Help, Discussion**