Cevaplar

2012-11-28T17:00:40+02:00
1. +4a-5ab-3a-4b+2ab =(+4-3)a+(-5+2)ab-4b = +1a-3ab-4b   2. 2x-4+3x+3 =(-4)+3+2x+3x =(-1)+5x   3.1x+2x =3x   4.-1x+9x+6a =(-1x+9x)+6a =8x+6a   5.2x+1a+1x =2x+1x+1a =3x+10   6.18x+2x =20x   7.5x-4-7x


=-7x+5x-4 

=-2x-4   8.12+6x+9+x =12+9+6x+1x =21+7x   9.2x+3x =5x 10.-6x+1+-x-4 =-6x-x+1-4 =-7x+-
2 3 2