Jawabanmu

2014-09-08T18:44:18+07:00
Y (y+3) + 2 (y+3)
y² + 3y + 2y + 6
y²+ 5y + 6
2014-09-08T18:48:28+07:00
(y+2) (y+3) = +3y+2y+6
                 =+5y+6