43쪽부터:7,11 15 4분의3 27분의a3승 2의제곱,13,14,14 9 -a제곱b의3승/-2x+6y,-x-y,x+4y,x-4y/-6x-2y,-2x-5y 4x-4y,-4x-9y+2 3a+b 2a+3b 6분의11a-2분의7b
[무물보AI] 답변 로딩중...
당신은 어느 그룹입니까?