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(本题共两小题,每小题6分,满分12分)
(1)解不等式组:                  
(2)因式分解:

(1)
解:由①得 .··············································································· 2分
由②得 .··················································································· 4分
不等式组解集为.·································································· 6分
(2)解:
························································································ 2分
.·············································································· 6分

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