设胜一场得x分,负一场得y分,平一场得z分8x+11y+9z=336x+14y+8z=26 解得x=自己解6x+18y+4z=22答:胜一场得
6*1=6a*a*3=3a^2 0.6*a*c =0.6ac4*b*c =4bca*6*b =6ab1*b*3 =3bc*c =c^2b*m=bm