Jawabanmu

2014-09-07T22:08:11+07:00
(-2(3p+2)) -(2p+6) = (-6p-4) -2p -6= -8p-10
yg no.4 nggk jelas
2014-09-07T22:15:19+07:00
4. 5ab + 2bc - d
3ab + 2bc + 6d
______________ +
8 ab + 4 bc + 5d