Jawabanmu

2014-08-14T20:06:21+07:00
4x + 2x = 4+2 (x+x) = 6x²
2014-08-14T20:10:44+07:00
4x+2x=6x

4+2=6 (berlaku selama variabelnya sama contoh 6y+2y=8y)