Jawabanmu

2014-08-26T19:23:09+07:00
2014-08-26T19:23:58+07:00
6xy + 3yz + 4z dan 2xy + 4yz -4z
6xy + 2xy + 3yz + 4yz +4z - 4z
8xy + 7xy
1 4 1