math
posted by barb on .
can someone check my answer on this one?
rewrite with rational exponents:
(sqrt5mn)^9
i got: 5^9/2m^9/2n^9/2 is this correct?

It is correct, good work. Ignore the immatures.

Thank you Bob: Did it make any difference that everything inside the radical is in parentheses? Could the answer have been 5mn^9/2. What did the parentheses indicate?