| 若a2+b2+c2-2(a+b+c)+3=0,则a3+b3+c3-3abc=______. |
答案:
| ∵a2+b2+c2-2(a+b+c)+3=0, ∴(a-1)2+(b-1)2+(c-1)2=0, ∴a=b=c=1, 故a3+b3+c3-3abc=0. 故答案为:0. |

| 若a2+b2+c2-2(a+b+c)+3=0,则a3+b3+c3-3abc=______. |
答案:
| ∵a2+b2+c2-2(a+b+c)+3=0, ∴(a-1)2+(b-1)2+(c-1)2=0, ∴a=b=c=1, 故a3+b3+c3-3abc=0. 故答案为:0. |