(x+1)(x+6)/(2x-1/2)²/(5x-2)²/(2x+y)²/xz(y-3)²/(5a-3b)²/3(x+2)(x+3)/2y(x-3)(x+2)/(x+3)(3x+2)/(3x+1)(3x-2)
당신은 어느 그룹입니까?