题目内容
(1)解不等式组: (2)因式分解:
(1)(2)
(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
(1)分别解出不等式的解,再求公共解(2)提取公因式,利用平方差公式分解
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
(1)分别解出不等式的解,再求公共解(2)提取公因式,利用平方差公式分解
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