Question

（本題共兩小題，每小題6分，滿分12分）

（1）解不等式組：                  

 

（2）因式分解：

 

Answer 1

【答案】

（1）

解：由①得　．··············································································· 2分

由②得　．··················································································· 4分

不等式組解集為．·································································· 6分

（2）解：

························································································ 2分

．·············································································· 6分

【解析】略