See:
http://www.jiskha.com/display.cgi?id=1289863704
what is the simplified form of the expression?
(3c^2d^4)^3(2c^5d^8)^3
2 answers
(3c^2d^4)^3 (2c^5d^8)^3 =
(27c^6d^12) (8c^15d^24=
216c^21d^36.
(27c^6d^12) (8c^15d^24=
216c^21d^36.