Jawabanmu

2014-08-28T18:42:04+07:00
(2x+1)(x+3)
2x²+6x+x+3
2x²+7x+3
23 4 23
2014-08-28T18:46:11+07:00
(2x+1) (x+3)
2x²+6x²+1x+3= 8x²+1x+3
6 3 6