Cevap :
üsleri aynı olanlarda işlem yapacaksın
a) 7x2+12x+2
b )-x2-2x+10
c )11x2+19x-2
d )-6x2-11x+24
a)(3xkare+5x+6)+(4xkare+7x-4)=7xkare+12x+2
b)(3xkare+5x+6)-(4xkare+7x-4)=-xkare-2x+2
c)(3xkare+5x+6)+2(4xkare+7x-4)=11xkare+19x-2
d)2(3xkare+5x+6)-3(4xkare+7x-4)=6xkare-11x