Results 1 to 4 of 4

- Oct 19th 2007, 10:52 AM #1

- Joined
- May 2007
- Posts
- 56

## 81^x-2

Question is in topic.

You must express this in form 9^y

I managed to do 1/9^1-x, and got 9^x as my answer (not sure if that's right), but cannot do this question

EDIT: Also, how would you do 3^4x+6, still expressing the answer in the form 9^y?

Thanks!

- Oct 19th 2007, 11:16 AM #2

- Oct 19th 2007, 11:17 AM #3

- Joined
- Nov 2005
- From
- someplace
- Posts
- 14,972
- Thanks
- 5

- Oct 19th 2007, 12:11 PM #4

- Joined
- Jun 2007
- Posts
- 65