Jawabanmu

Jawaban paling cerdas!
2014-09-03T14:31:01+07:00
1. =x"+4x+3x+12
    =x"+7x+12
2. =3x"-15x+2x-10
    =3x"-13x-10
3. =2y"+8y-3y-12
   =2y"+5y-12
4 =6y"+21y-8y-28
   =6y"+13y-28
5 =20y"-16y-15y+12
   =20y"-31y+12