1번:2x-3y/2번:6분의x제곱-19x+14/3번:(1)2x제곱+3x+10 (2)8x+17/4번:2x제곱-6/5번:2/6번:1/7번:-2/8번:4a세제곱b여섯제곱+6a네제곱b네제곱
당신은 어느 그룹입니까?