Question

rewright with a single exponent (9^7)^3

Answer 1

thank you

Answer 2

Actually, I don't think that's correct. I believe the correct answer is 9^21.

http://www.purplemath.com/modules/exponent.htm This should help explain why this is the correct answer. Basically, when you're raising an exponent to a power, you multiply the exponents.

\[(x^m)^n = x ^{mn}\]

Answer 3

Ah yeah, sorry.

Answer 4

No problem! I had to look it up to be sure. :P Haven't dealt with exponents in a long time.