1.1.9x제곱-6x제곱y+3xy(2)-16a제곱+26a-1(3)-2x-20y(4)-x제곱+2xy-10y제곱/2.(1)3a-2+4b(2)yz/6x-2/5y+z/2(3)x제곱+2 입니다^^
당신은 어느 그룹입니까?