(8~24번순서대로입니다^^) 5,x+3y,2,-x제곱+9x-2,5,-xy+y제곱,4,4,5,2,2x제곱-6x+6,4,1/2,3,r=2S/l,-6케이제곱?(잘안보여요ㅜ),9/4배
당신은 어느 그룹입니까?