Jawabanmu

2014-08-28T17:13:14+07:00
3(-3)(-5) - 2(-3)(-5) = 45 - 30 = 15
2014-08-28T17:14:28+07:00
3bc-2bc
=3 (-3)(-5) - 2 (-3)(-5)
=3 (15) - 2 (15)
=45-30
=15