Question

simplify.
(2r)^4/(2r^4)

Answer 1

\[\frac{ (2r)^4 }{ 2r^4 }\]This is your problem? :D
Hmm, so notice how the 4 is outside of the brackets on the top.
It's telling you to raise EVERYTHING inside the brackets to the 4th power.

So do that as your first step. :D
\[(2r)^4=2^4 *r^4\]