Jawabanmu

2014-08-18T21:21:40+07:00
(2a)^3/(2a)^-1= (2a)^4
(3x)^4/(3x)^2= (3x)^2

atau

2^3a^3/2^-1a^-1= 2^4a^4
3^4x^4/3^x^2=3^2x^2